9分之1乘(3.47除18分之5减3.6加7.53乘3又5分之3)等于多少
问题描述:
9分之1乘(3.47除18分之5减3.6加7.53乘3又5分之3)等于多少
答
1/9x(3.47÷5/18-3.6+7.53x18/5)
=1/9x(3.47x18/5+7.53x18/5-3.6)
=1/9x(3.47+7.53)x18/5-1/9x3.6
=2/5x10-0.4
=4-0.4
=3.6