[(1/13+2.4除以6又2/5+ 2又5/8]*5

问题描述:

[(1/13+2.4除以6又2/5+ 2又5/8]*5
简便运算

[(1/13+2.4除以6又2/5+ 2又5/8]*5
=[1/13+(12/5)/(32/5)+21/8]*5
=(1/13+3/8+21/8)*5
=(40/13)*5
=200/13