甲绳子长8分之7米,乙绳子长6分之5米,这两根绳子一共多少米?这两根绳子相差多少米?

问题描述:

甲绳子长8分之7米,乙绳子长6分之5米,这两根绳子一共多少米?这两根绳子相差多少米?

甲是7/8米,乙是5/6米,所以一共=7/8+5/6=21/24+20/24=41/24米;
相差:7/8-5/6=21/24-20/24=1/24米