Ratios and Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 3:2), as a fraction (e.g., 3/2), or with the word 'to' (e.g., 3 to 2).

Front

What is a ratio table?

Back

A ratio table is a table that shows equivalent ratios, helping to visualize the relationship between two quantities.

Front

If there are 4 apples and 2 oranges, what is the ratio of apples to oranges?

Back

The ratio of apples to oranges is 4:2, which simplifies to 2:1.

Front

What is an equivalent ratio?

Back

Equivalent ratios are two or more ratios that express the same relationship between numbers.

Front

If the ratio of boys to girls is 3:4, how many girls are there if there are 12 boys?

Back

If there are 12 boys, then there are 16 girls (since 3:4 means for every 3 boys, there are 4 girls).

Front

What is the ratio of red toy cars to all toy cars if there are 3 red, 2 black, and 5 white toy cars?

Back

The ratio of red toy cars to all toy cars is 3:10.

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How do you find a missing number in a ratio?

Back

To find a missing number in a ratio, set up a proportion and solve for the unknown value.

Front

If a recipe calls for 2 cups of flour to 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

What is the ratio of girls to boys if there are 5 boys and 7 girls?

Back

The ratio of girls to boys is 7:5.