define the word "ratios" in the mathematical sense in simple terms

In simple terms, ratios refer to the relationship or comparison between two or more quantities. It is a way of expressing how much of one thing there is compared to another by dividing one quantity by another. Ratios can help us understand proportions and make comparisons. For example, if you have 3 red apples and 5 green apples, the ratio of red to green apples is 3:5 or 3/5.