2.42除以四分之三+4.58乘以一又三分之一-4除以三简便运算怎么做啊?
问题描述:
2.42除以四分之三+4.58乘以一又三分之一-4除以三简便运算怎么做啊?
答
2.42/(3/4)+4.58*(1+1/3)-4/3
=2.42*(3/4)+4.58*(4/3)-(4/3)
=(2.42+4.58-1)*(4/3)
=6*(4/3)
8