5分之3除8分之5加1又5分之2除8分之5
问题描述:
5分之3除8分之5加1又5分之2除8分之5
答
(3/5)/(5/8)+(1+(2/5))/(5/8)
=(3/5+1+2/5)/(5/8)
=2/(5/8)
=2/5*8
=16/5
=5分之16