一个长方形,它的长是4/5米,比宽多1/10米,长、宽的和是多少米?:E5m0j'r6f9c*o
算式:提示0J+L1?3s:E5m0j'r6f9c*o
答:长、宽的和是1(1/2)米:E5m0j'r6f9c*o