
3个回答
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48乘(7/12+5/8)除以2/3
=48X(7/12+5/8)÷(2/3)
=(7X4+5X6)X(3/2)
=(28+30)X(3/2)
=58X(3/2)
=87
3/8乘1/3除以3/8-3/14
=(3/8)X(1/3)÷(3/8)-3/14
=(1/8)X(8/3)-3/14
=1/3-3/14
=14/42-9/42
=5/42
23-8/9乘3/8除以1/27
=23-(1/3)X27
=23-9
=14
=48X(7/12+5/8)÷(2/3)
=(7X4+5X6)X(3/2)
=(28+30)X(3/2)
=58X(3/2)
=87
3/8乘1/3除以3/8-3/14
=(3/8)X(1/3)÷(3/8)-3/14
=(1/8)X(8/3)-3/14
=1/3-3/14
=14/42-9/42
=5/42
23-8/9乘3/8除以1/27
=23-(1/3)X27
=23-9
=14
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