Ratio is widely used in mathematics, involving algebra, geometry, statistics and other fields. Ratio can be used to solve various practical problems, such as calculating population ratio, measuring scale ratio and calculating capital ratio. In algebra, the ratio can be expressed by a fraction, that is, the result of dividing one number by another is a fraction, for example, 2:3 can be expressed as 2/3.
Using the ratio can help us better understand the relationship between data, so as to better solve practical problems. In practical application, we also need to know the nature and calculation method of the ratio. For example, the ratio can be simplified to the simplest form, and two ratios can be multiplied and Divison. It should also be noted that the ratio is meaningful only in the same unit, for example, kilograms cannot be compared with meters.