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1、六年级分数解方程练习题六年级分数解方程练习题班级班级姓名姓名成绩成绩 25%+10X=25%+10X=X-15%X=68 X-15%X=684X X38X X121 5X121 5X6X6X5=13.45=13.4X X2=7716 X X12125 5X=X=3 31010X X635=26451325 4 453 35521723X X14121234X 1438 3X=3X=38738X=X=4X 4X6 6243=2=232581165 X=X=729 X=X=651x x3 3 9=299=2912x x+16x x=4=4321X X2121=4=4x x 202(x 2.6)81
2、0342 21 13 36X6X5=13.45=13.4 X-X-X=X=4 46 638385X=5X=151923X X14=12=12X X6261335=45254+0.7X=1024+0.7X=102 X-X-38X=400 X-0.125X=8X=400 X-0.125X=85 53 31010821X=X=415 X X35X=X=2572142X+X+132X=42 X+X=42 X+4155=2889X=X=161651X4=30%=30%14X=105X=10536X=34 X-0.25=X-0.25=3 31 13 31313X+X+X=18 X X=18 X(+)=)=
3、x x0.375x=0.375x=57 76 68 812126x x+=4=4 X3X125 X2.458723123833210.365-x=(x-4.5)=7 x-25%x=1045324 4x-0.8x=16+6 20 x 8.5=1.5x-x-x-4=21 x-4=215 538X25%X=90 X X=解：（1）（123/479122/3）x8/3（98）x8/3 17x8/3 x8/317 x8/51（2）7x/153/44/159/17 7x/159/85 x9/857/15 x27/119（3）（151/3152/5）x20（56）x20 11x20 x2011 x20/11
4、（4）2x3x/76 11x/76 x611/7360（126）5288（2614）85006-(502-80)（10512635）25864（2723）12（453816）24500（240386）64（8742）15（845153）1612（4928）7450（8448）12（58+37）（64-95）95（64-45）178-14556+42812-700（9+3111）85+14（14+20826）（284+16）（512-820818）120-36418+35（58+37）（64-95）(6.8-6.80.55)8.50.12 4.80.124.8（3.21.5+2.5）1.66-1
5、.64=5.38+7.85-5.37=7.20.8-1.25=6-1.193-0.43=6.5（4.8-1.24）=5.8（3.87-0.13）+4.23.7432.52-（6+9.7283.2）2.5（7.1-5.6）0.9-1.15 2.55.42.6（3.7-2.9）+0.62126（12-7.2）-61267.2-60.681.9+0.321.9（58+370）（64-45）420+580-642128（136+64）（65-34523）48.10.15-10.750.4-5.7388+(5000-1000)158+262+138375+219+381+2255001247102123
6、2（181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+19953999+498188339812257524138254(13125)(38)(12+24+80)5070425 253212532(25+125)8812510276 58981781011788436+64847599
7、+2758310283298199123181233+8512350(344)325（24+16）17899+1787942+79+7957730025481004751680012030100210032000400497007001248243150154800252356（1356721）1235（17801665）7527+192 531870+133104(2565+2528)（181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+99755(
8、2187+755)2214+638+286 30657381065899+3442357183317357 236510862144972992370+19953999+49818833981225 7524138254(13125)(38)(12+24+80)5070425253212532(25+125)881251027658981781011788436+64847599+275 8310283298199123181233+8512350(344)325（24+16）17899+1787942+79+795773002548100475168001203010021003200040
9、049700700124824315015480025215001252356（1356721）1235（17801665）7527+192531870+133104(2565+2528)1 2x+3(9-x)=21 2x+3*9-3x=21 27-x=21 x=27-21 x=62.(1-25%)x=72 75%x=72x=7275%x=963.x-40%x=3.6 (1-40%)x=3.6x=3.660%x=66.2-1417411 =2-1128411 =1072x+3x=605x=60 x=123.6x-2.8x=120.8x=12x=15100 x-x=19899x=198x=218
10、x+2x=60(问题里弄成+60 了 是等号吧?)20 x=60 x=35x+6x=12.111x=12.1x=1.16.6x-5x=81.6x=8x=54x-x=243x=24x=81.5x-x=10.5x=1x=21.9x+0.4x=9.22.3x=9.2x=425x-5x=1020-52020 x=100 x=580 x-40=(30 x+40)280 x-40=60 x+8020 x=120 x=680 x-3200=60 x+120020 x=4400 x=2201.50.061.440.75150.05,0.40.80.32,4203512,2512300,1350.52703/4+1/4=1,3-2/3=7/3,3/4-1/2=1/41/6+1/2-1/6=1/2,7.5-(2.5+3.8)=1.2,7/8+3/8=5/43/10+1/5=1/2,4/5-7/10=1/10,2-1/6-1/3=1.50.51170.03,32.81951.8,5.21.34,1.60.4 0.644.90.73.43,150.2,6120.5,0.870.490.38