把下面各比化成最简单的整数比.
来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/04/29 21:15:21
把下面各比化成最简单的整数比.
(1)
5 7: 1 3, =( 5 7×21):( 1 3×21), =15:7; (2)0.75:0.4, =(0.75×20):(0.4×20), =15:8; (3)0.3: 3 5, =(0.3×10):( 3 5×10), =3:6, =1:2; (4)2小时:30分, =120分:30分, =(120÷30):(30÷30), =4:1; (5) 5 6: 15 24, =( 5 6×24):( 15 24×24), =20:15, =4:3; (6) 1 5吨:400千克, =200千克:400千克, =(200÷200):(400÷300), =1:2. |