Ratios and Proportions

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

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is the ratio of 2 to 5 expressed in simplest form?

Back

The ratio 2:5 is already in simplest form.

Front

If the ratio of girls to boys is 1:3, how many boys are there if there are 5 girls?

Back

There are 15 boys.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same value.

Front

What is the simplified ratio of 10 to 20?

Back

The simplified ratio of 10 to 20 is 1:2.

Front

If 4 apples cost $2, what is the cost of 10 apples?

Back

The cost of 10 apples is $5.

Front

Find the missing number: 3 : 9 = ? : 27

Back

The missing number is 9.

Front

What is the ratio of 10 students wanting hotdogs to 26 wanting hamburgers?

Back

The ratio is 10:26.

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.