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Hebei Education Edition Mathematics Lesson One Practice Sixth Grade Volume Unit 2 Comparison and Comparison 2.3 Example (Page 9) How to do basic exercises 4 and expand exercises?
4,3|8: 1|5 =3|8:3|3 3|8:3|5= 1|8: 1|5 3|5: 1|5=3|8: 1|8

1|5:3|8=8|25:5|3

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A times 1|3= B times1| 4a: b =1| 4:1| 3 = 3: 4.

A: The ratio of A to B is 3: 4.