= | = | = | = |
= | = | = | = |
解: ×8= , | =3, | =18, | = , |
= , | =4, | = , | = ; |
,3,18,
,
,4,
,
.分析:根据分数乘法的计算方法:分子和分子相乘做分子,分母和分母相乘做分母,能约分的要先约分,由此解答.
点评:本题主要考查了分数乘法的计算方法,注意结果要化成最简分数.
编辑:chaxungu时间:2026-04-27 09:15:40分类:小学数学题库
= | = | = | = |
= | = | = | = |
解: ×8= , | =3, | =18, | = , |
= , | =4, | = , | = ; |
,3,18,
,
,4,
,
.