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1、1 五年级上册约分和通分专项练习1、把下面的分数约分成最简分数。2、把下面每组中的两个分数通分。和和和3、先约分，再比较每组中两个分数的大小。4、先通分，再比较每组中个分数的大小。5、把下列分数从大到小排列6、有甲、乙、丙三个射击运动员练习射击，三人各自射击了30、40、50 发子弹，分别打中了靶子25、36、40 次，请问谁的命中率比较高一些？2 8 10 156 98 1014 2118 3070 10566 881 45 67 92 39 105 624 323 1230 7018 487 159 207 185 125 98 154 511 133 57 103 45 613 155
2、83 42 35 61 87 122 7、.在下图中画出阴影表示下面的分数，再比较它们的大小。234681221428、在里填上适当的运算符号，在里填上适当的数。25205252052528801680161216829、把下列分数化成分母是10 而大小不变的分数。52213012204501512010810.填空（1）约分的依据是（），约分的结果通常要得到（）分数。（2）在63、47、82、411、213、95中，（）是最简真分数。（3）分母是8 的最简真分数有（），分子是6 的最简假分数有（）。（）。11、把下列分数化成最简分数。1812271820465133288212、把下列小数化
3、成最简分数。0.754.81.250.363.25.4文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF1
4、0Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D
5、3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG
6、4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G
7、5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编
8、码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T
9、8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K73 13、在（）里填上适当的最简分数。80 厘米（）米700 千克（）吨350 平方分米（）平方米4 时 45 分
10、（）时14、填一填。（1）把（）分数化成和原来相等的（）分母分数，叫做通分。（2）通分的依据是(）。（3）32的分母增加 6,要使分数的大小不变，分子应该（）。（4）把2412的分子减去8,要使分数的大小不变，分母应该（）。（5）把一个分数约分，用 3 约 2 次，用 2 约 1 次，最后得到52，原来的分数是（）。15、写出下面每组分数的公分母。（1）41和32公分母可以是（）（2）52和157公分母可以是（）（3）143和352公分母可以是（）16、将下列各组分数通分。（1）81125（2）1725110（3）10397（4）18527717、根据分数的意义比较大小。21547343141
11、114518717718、先通分，再比较分数的大小。9765229331019、采用合适的方法比较大小。315485323988741151273118212文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R
12、5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10
13、 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y
14、3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F
15、7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q
16、2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K
17、7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K74 412
18、20、先通分，再比较分数的大小。9765229331021、采用合适的方法比较大小。31548532398874115127311821241222、把下面的分数填入合适的方框里。21、74、92、61、45、81、32、51比41大的分数比41小的分数23、选一选，填一填。(1)一个最简真分数，分子与分母的和是10，这样的分数有（）个。A、2 B、3 C、4（2）一个分数的分子除以2,分母乘 2,这个分数的分数的分数值将（）。A、乘 4 B、除以 4 C、不变、24、把下面各数按从小到大的顺序排列。（1）7 977100777.7（）（）（）（）（2）0.311 0.309 1003131（
19、）（）（）（）25、李阳和胡明在篮球馆里进行投篮训练，李阳投了60 次，投中了43 次；胡明投了80 次，投中了61 次，请你帮着算一算，谁投的更准一些？26、算一算，填一填文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编
20、码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T
21、8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N
22、10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF1
23、0Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D
24、3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG
25、4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G
26、5K75（1）如果 a,b 只有公因数1,请你把a2、b2通分。（2）5321文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T
27、8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N
28、10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF1
29、0Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D
30、3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG
31、4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7文档编码:CB2T8R5J4N10 HF10Y3U9D3F7 ZG4Q2S8G5K7