5/4X-4*1.2=3.2 (4/5-8/15)*25/32 1/5/(2-1/3*1/2) 9/10*{7/8/(3/8+1/4)}

如题所述

第1个回答  2022-07-20
5/4X-4*1.2=3.2
5/4x-4.8=3.2
5/4x=4.8+3.2
5/4x=8
x=8÷5/4
x=32/5