Ratios and Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities (amounts) expressed as a fraction, using a colon, or in words.

Front

What does the ratio 3:4 mean?

Back

It means for every 3 parts of one quantity, there are 4 parts of another quantity.

Front

How do you find an equivalent ratio?

Back

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

Front

If a recipe calls for a ratio of 2:3 of sugar to flour, how much sugar is needed for 6 cups of flour?

Back

4 cups of sugar (because 2/3 of 6 is 4).

Front

What is a ratio table?

Back

A ratio table is a table that shows the relationship between two quantities and lists pairs of equivalent ratios.

Front

If 6 lawns are mowed for $54, how much is earned per lawn?

Back

$9 per lawn.

Front

What is the purpose of using ratios in real life?

Back

Ratios help compare quantities, understand proportions, and solve problems involving relationships between different amounts.

Front

How can you express the ratio 12:16 in simplest form?

Back

The simplest form is 3:4 (by dividing both terms by 4).

Front

If a car travels 150 miles in 3 hours, what is the ratio of miles to hours?

Back

The ratio is 150:3, which simplifies to 50:1.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.