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(1):3加3/4除以3/4加三的商除以七乘1/6除以七乘1/6...

2/3-3/4×4/6+1/3÷3/7 =2/3-1/2+7/9 =1/6+7/9 =17/18

1/4×(-6/7-3 3/4)÷(-11) =1/4×(-6/7-15/4)×(-1/11) =1/4×45/14×(-1/11) =45/56×(-1/11) =-45/616

7/8加上3/4的和除以1/6商是多少? (7/8+3/4)÷1/6 =13/8÷1/6 =39/4

1/6除以中括号9/17乘以括号3/4加2/3括号中括号 解: 1/6÷[9/17×(3/4+2/3)] =1/6÷(9/17×17/12) =1/6÷3/4 =2/9

2/3-(5/6-3/4)除3/8 =2/3-1/12除3/8=2/3-2/9=4/9 5/14除【6/7乘(4/9+1/6)】=5/14除【6/7乘11/18】=5/14除11/21=15/22

4/9 / (1/3+1/6) * 3/4 = 4/9 / 1/2 * 3/4 = 4/9 *2 * 3/4 =2/3

1/6除以9/17乘于3/4加2/3的和的积。 解: 1/6÷【9/17*(3/4+2/3)】 =1/6÷【9/17*(9/12+8/12)】 =1/6÷【9/17*17/12】 =1/6÷3/4 =1/6*4/3 =2/9

13除以4=13/4 0.25=1/4 6/4+13/4-19/4 =0

先算出前面的

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