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1、-C5专练异分母分数加减法(10套含答案)-第 12 页专练51 异分母分数运算(10套,5页,含答案)知识点:异分母分数相加减: 先通分,把两个分数转化为同分母分数,然后分母不变,分子相加减。典型例题:(答案:;) (答案:;) + (答案:;) + (答案:;) (答案:;) (答案:;) (答案:;) (答案:;) (答案:2;) 专练52 异分母分数运算(答案:;) (答案:;) (答案:;) (答案:;) (答案:;) (答案:;) (答案:;) =(答案:;) (答案:;) (答案:;) (答案:;) =(答案:;) (答案:;) 10 - (答案:9;) 答案:;答案:;:;2;
2、答案:;答案:;答案:;9;专练53 异分母分数运算(答案:;) =(答案:;) =(答案:;) (答案:;) =(答案:;) =(答案:;) = (答案:;) +=(答案:;) 11 (答案:10;) ( )(答案:;) ()=(答案:;) (答案:;) ( )=(答案:;) =(答案:;) 专练54 异分母分数运算=(答案:;) =(答案:;) 2=(答案:;) +=(答案:;) +(答案:;) +(答案:;) (答案:;) (答案:;) (答案:;) (答案:;) (答案:;) + +=(答案:;) =(答案:;) ()=(答案:;) 答案:;答案:;10;答案:;答案:;答案:;答案:
3、;专练55 异分母分数运算(答案:;) +(答案:;) +(答案:;) (答案:;) +(答案:;) (答案:;) +(答案:;) =(答案:;) (答案:;) 1(答案:;) (答案:;) 1=(答案:;) =(答案:;) 2=(答案:0;) 专练56 异分母分数运算=(答案:;) -=(答案:;) = (答案:;) (答案:;) =(答案:;) =(答案:;) =(答案:;) (答案:;) (答案:;) -(+)=(答案:;) -+(答案:;) (答案:;) (答案:;) (答案:;) 答案:;答案:;答案:;0;答案:;答案:;答案:;专练57 异分母分数运算-(答案:;) (答案:;)
4、 (答案:;) (答案:;) (答案:;) (答案:;) (答案:;) (答案:;) +(答案:;) ( )(答案:;) +-(答案:;) (答案:;) 3(答案:1;) ()=(答案:;) 专练58 异分母分数运算(答案:;) (答案:;) =(答案:;) + =(答案:;) (答案:;) (答案:;) (答案:;) =(答案:;) +(答案:;) -(+)=(答案:;) +( )=(答案:;) -(+)=(答案:;) + - (答案:;) 2(答案:;) 答案:;答案:;答案:;1;答案:;答案:;答案:;专练59 异分母分数运算(答案:0;) (答案:;) (答案:;) =(答案:;) (答案:;) (答案:;) (答案:;) (答案:;) -(+)=(答案:0;) -+(答案:;) +(答案:;) (答案:;) (答案:;) 3 - - - (答案:;) 专练5-10 异分母分数运算(答案:;) =(答案:;) (答案:;) (答案:;) (答案:;) (答案:;) (答案:;) (答案:;) -(+)=(答案:;) +(答案:;) +(答案:;) (答案:2;) (答案:0;) + + (答案:;) 答案:0;答案:;0;答案:;答案:;答案:;答案:;2;0;