题目内容

7
3
手8
13
3手:377.m:7.1手.
(1)
7
5
38
15

=(
7
5
×15):(
38
15
×15),
=31:38,
=3:q;

(3)33:52,
=(33÷3):(52÷3),
=16:35;

(3)2.6:2.13,
=(2.6×52):(2.13×52),
=32:6,
=5:1.
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网