Understanding Ratios and Categories

Front

Ratio eg. 4:3

Back

Comparing two or more quantities that have the same unit or belong to the same category.

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Category

Back

A group of similar objects, such as furniture (comparing the number of tables and chairs) or books (fiction and non-fiction), or gender (male and female).

Front

Equivalent Ratios

Back

When two ratios have the same value.

Front

How are ratios equivalent?

Back

They can be simplified to the simplest ratio by removing common factors or multiplied by common factors to show that they are the same.

Front

Common Factor

Back

The same number used to divide all the numbers in a ratio.

Front

simplest ratio

Back

a ratio which cannot be reduced further as there are no common factors to remove

Front

proportion

Back

when two ratios are equivalent, we can use AN EQUAL SIGN to show this for example:

3 : 4 = 12 : 16

We can use proportions to solve for unknown values

3 : 4 = 12 : b

Front

how do we write ratios as fractions?

Back

Front

express ratios as fractions, decimals, percentages by using an example

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