一根电线长150米,用去3/5,还剩几分之几?还剩几米?
问题描述:
一根电线长150米,用去3/5,还剩几分之几?还剩几米?
答
还剩:1-3/5=2/5
150×2/5=60m
一根电线长150米,用去3/5,还剩几分之几?还剩几米?
还剩:1-3/5=2/5
150×2/5=60m