( )比80米多1/5,( )比12吨少1/3,

问题描述:

( )比80米多1/5,( )比12吨少1/3,

(96米)比80米多1/5
80×(1+1/5)=96(米)
(8吨)比12吨少1/3
12×(1-1/3)=8(吨)