| 直接写出得数 1÷ = | + = | ÷ = |
× = | ÷1= | × = |
24÷ = | ÷ = |
1÷ =50, | + =1, | ÷ = , |
× = , | ÷1= , | × = , |
24÷ =64, | ÷ = . |
分析:分数乘法:分子相乘的积做分子,分母相乘的积做分母,能约分的先约分;
分数除法:除以一个不为零的数等于乘上这个数的倒数.
点评:本题考查了简单的分数计算,计算时要细心,注意把结果化成最简分数.
编辑:chaxungu时间:2026-04-27 09:23:42分类:小学数学题库
| 直接写出得数 1÷ = | + = | ÷ = |
× = | ÷1= | × = |
24÷ = | ÷ = |
1÷ =50, | + =1, | ÷ = , |
× = , | ÷1= , | × = , |
24÷ =64, | ÷ = . |