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3/8比3/7化简比

(3/4)÷(-7/8)-(7/8)÷(-7/8) =(-12/7)-(-1) =5/7

=6/7x4/3=8:7

14:9

7/12 : 3/8 = 7x8/(12x3) = 14/9 = 14 : 9

3/4 : 7/8 = 6/8 : 7/8 = 6 : 7

3/4:7/8 =3/4x8/7 =6:7 1:3/5 =1x5/3 =5:3 0.24:2 =0.24÷2 =0.12 =12:100 =3:25 0.3:0.09 =30:9 =10:3 5:1/5 =5x5 =25:1 0.25:1 =0.25 =1:4

3.2:7.2 =3.2×10:7.2×10 =32:72 =32÷8:72÷8 =4:9

化简比是把一个比化成最简单的整数比,前后项不能省略,应是3:1,而求比值是求比的前项除以后项的商,应是3,写是两个不同的概念,所以说法不正确。

如图

9:5 比值 1.8

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