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:b'.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between numbers, meaning they can be simplified to the same fraction.

Front

How do you find an equivalent ratio?

Back

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

Front

If a recipe calls for a ratio of 2:5 for sugar to flour, how much flour is needed if you use 4 ounces of sugar?

Back

10 ounces of flour (4 ounces sugar * 5/2 = 10 ounces flour).

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something (e.g., miles per hour).

Front

How do you calculate the unit rate from a ratio?

Back

To calculate the unit rate, divide the first quantity by the second quantity to find out how much of the first quantity corresponds to one unit of the second.

Front

What is the ratio of girls to boys if there are 12 girls and 18 boys?

Back

The ratio of girls to boys is 2:3 (12:18 simplified).

Front

If 15 apples cost $3, what is the price per apple?

Back

The price per apple is $0.20 ($3 ÷ 15 apples).

Front

What is the equivalent ratio of 4:6?

Back

The equivalent ratio of 4:6 is 2:3 (dividing both terms by 2).

Front

How do you express a ratio as a fraction?

Back

A ratio can be expressed as a fraction by placing the first quantity over the second quantity (e.g., 3:4 becomes 3/4).