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7/1十7/5除以6/5

1÷5/6-1÷6/7=1÷(5/6-6/7)=1÷(-1/42)=42

一又2/7除以(6/5) =9/7÷6/5 =15/14 -------------------------------

7分之6÷5+1/7×5分之1 =6/35+1/35 =7/35 =1/5

(1)5/7+5/6+2/7+1/6 =5/7+2/7+5/6+1/6=2 (2)1/15x(1/3+1/12)=1/15x5/12=1/36 (3)1/3+3除以1/2 (4)3.7乘以6/5+1.3除以5/6 (5)1/4除以3-5/13-8/13) (6)0.5乘以(3/5+6/25)

5/18÷5/7÷1/6 =5/18×7/5×6 =7/3

1/2+(3/4+4/5)÷7/10 =1/2+(15/20+16/20)x10/7 =1/2+(15+16)/20x10/7 =1/2+31/14 =7/14+31/14 =(7+31)/14 =38/14 =19/7 =2又7分之5

第一题,相当于3/5*10*1/6约分可得答案为1,第二题,先算5/6*/5=1/3,则为7/8除1/3即为乘三答案21/8

除以6/5相当于乘以5/6 提出5/6 就可以了

(6/5-9/5)/(1/2+7/18) =-3/5)x9/8 =-27/40

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