Ratios and Equivalent Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or 'a:b'.

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How do you write a ratio?

Back

Ratios can be written in three ways: using the word 'to' (e.g., 4 to 3), using a colon (e.g., 4:3), or as a fraction (e.g., 4/3).

Front

What is an equivalent ratio?

Back

Equivalent ratios are two or more ratios that express the same relationship between quantities, such as 2:3 and 4:6.

Front

If the ratio of red apples to green apples is 4 to 3, how many green apples are there if there are 12 red apples?

Back

There are 9 green apples.

Front

What is the ratio of chocolate chips to flour in a recipe that uses 3 cups of flour and 2 cups of chocolate chips?

Back

The ratio of chocolate chips to flour is 2:3.

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How do you find equivalent ratios?

Back

To find equivalent ratios, you can multiply or divide both terms of the ratio by the same non-zero number.

Front

What is the ratio of 15 to 25 in simplest form?

Back

The simplest form of the ratio 15 to 25 is 3:5.

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If a recipe calls for 10 cups of flour and 5 cups of sugar, what is the ratio of sugar to flour?

Back

The ratio of sugar to flour is 1:2.

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What does it mean if two ratios are not equivalent?

Back

If two ratios are not equivalent, it means they do not represent the same relationship between the quantities.

Front

How can you express the ratio 10:45 in simplest form?

Back

The simplest form of the ratio 10:45 is 2:9.