(0.75×121-3/4×20-1/5)÷0.75怎么简算
问题描述:
(0.75×121-3/4×20-1/5)÷0.75怎么简算
答
{4分之3x(121-20)-1/5}X3/4=4/3x3/4x100-1/5x3/4=100-3/20=99又17/20
(0.75×121-3/4×20-1/5)÷0.75怎么简算
{4分之3x(121-20)-1/5}X3/4=4/3x3/4x100-1/5x3/4=100-3/20=99又17/20