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

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/28 14:09:09
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简便运算:17/25*5/37+18/25*17/37+

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
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

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
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

17/25*5/37+18/25*17/37+17/37*14/25
=5/25*17/37+18/25*17/37+17/37*14/25
=17/37*(5/25+18/25+14/25)
=17/37*37/25
=17/25