(1/2) ÷ (4/5)= (1/2) × (5/4)= 5/8(m)答:这个长方体的是5/8米。
(1/2) ÷ (4/5)= (1/2) × (5/4)= 5/8(m)答:这个长方体的是5/8
h=(1/2)/(4/5)=5/8米