1/5吨比1/4吨少_%,1/4吨比1/5吨多_%.
问题描述:
吨比1 5
吨少______%,1 4
吨比1 4
吨多______%. 1 5
答
(1)(
-1 4
)÷1 5
,1 4
=
÷1 20
,1 4
=20%;
(2)(
-1 4
)÷1 5
,1 5
=
÷1 20
,1 5
=25%;
故答案为:20,25.