用简便方法计算
(1/27减1/36)除以1/9
3/5乘1/6加7/5除以6
7÷5乘(5/7加5/28)
3/4乘1/2除3/4乘2
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ï¼1/27-1/36ï¼Ã·1/9
=1/27÷1/9-1/36÷1/9
=1/3-1/4
=1/12
3/5Ã1/6+7/5÷6
=3/5Ã1/6+7/5Ã1/6
=ï¼3/5+7/5ï¼Ã1/6
=2Ã1/6
=1/3
7÷5Ãï¼5/7+5/28ï¼
=7/5Ãï¼5/7+5/28ï¼
=7/5Ã5/7+7/5Ã5/28
=1+1/4
=1å1/4
3/4Ã1/2÷3/4Ã2
=ï¼3/4÷3/4ï¼Ãï¼1/2Ã2ï¼
=1Ã1
=1
ï¼1/27-1/36ï¼Ã·1/9
=1/27÷1/9-1/36÷1/9
=1/3-1/4
=1/12
3/5Ã1/6+7/5÷6
=3/5Ã1/6+7/5Ã1/6
=ï¼3/5+7/5ï¼Ã1/6
=2Ã1/6
=1/3
7÷5Ãï¼5/7+5/28ï¼
=7/5Ãï¼5/7+5/28ï¼
=7/5Ã5/7+7/5Ã5/28
=1+1/4
=1å1/4
3/4Ã1/2÷3/4Ã2
=ï¼3/4÷3/4ï¼Ãï¼1/2Ã2ï¼
=1Ã1
=1
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