直接写出得数. = | 8÷ = | = | = | = |
= | = | ÷7= | = | = |
解: =0, | 8÷ = , | = , | = , | =2 , |
=2.5, | =30, | ÷7= , | = , | =5. |
分析:
根据乘法交换律简算;分数乘法根据分子相乘的积作为分子,分母相乘的积作为分母进行求解;分数除法根据除以一个数等于乘这个数的倒数求解.点评:本题考虑基本的分数乘除法运算,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 08:24:30分类:小学数学题库
直接写出得数. = | 8÷ = | = | = | = |
= | = | ÷7= | = | = |
解: =0, | 8÷ = , | = , | = , | =2 , |
=2.5, | =30, | ÷7= , | = , | =5. |
根据乘法交换律简算;分数乘法根据分子相乘的积作为分子,分母相乘的积作为分母进行求解;分数除法根据除以一个数等于乘这个数的倒数求解.