Question

59乘58分之7+57乘58分之5 怎么算要简便的。急急急，要写过程

Answer 1

=59*7*1/58+57*5*1/58=1/58(59*7+57*5)=1/58*698=答案

Answer 2

59*7/58+57*5/58=58*7/58+58*5/58+7/58-5/58=7+5+1/29=12+1/29

Answer 3

(58+1)*7/58+(58-1)*5/587+7/58+5-5/5812+2/58

Answer 4

......用计算器最简便的了