简便运算:17/25*5/37+18/25*17/37+17/37*14/25
问题描述:
简便运算:17/25*5/37+18/25*17/37+17/37*14/25
之后我把所有的分都给你
139*37/138+101*139/138
答
17/25*5/37+18/25*17/37+17/37*14/25
= 17/37 * (5/25 + 18/25 + 14/25)
= 17/37 * 37/25
= 17/25