(4分之3-10分之1除以2)乘以14分之5简便计算

问题描述:

(4分之3-10分之1除以2)乘以14分之5简便计算

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(4分之3-10分之1除以2)乘以14分之5
=15/56-1/20×5/14
=15/56-1/56
=14/56
=1/4

(3/4-1/10除以2)X5/14
=(3/4-1/20)X5/14
=14/20X5/14
=1/4