Equivalent Ratios

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you simplify a ratio?

Back

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

Front

What is an equivalent ratio?

Back

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

Front

If a recipe calls for a ratio of 2:3 of sugar to flour, how much sugar is needed for 9 cups of flour?

Back

6 cups of sugar (since 2/3 of 9 is 6).

Front

What is the ratio of shaded to unshaded parts if 3 out of 5 parts are shaded?

Back

The ratio of shaded to unshaded parts is 3:2.

Front

How can you find a missing value in a proportion?

Back

You can find a missing value in a proportion by cross-multiplying and solving for the unknown.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first number is the numerator and the second number is the denominator.

Front

How do you convert a ratio to a percentage?

Back

To convert a ratio to a percentage, divide the first number by the sum of both numbers and multiply by 100.

Front

What is the ratio of 12 ounces of tuna containing 84 grams of protein?

Back

The ratio of protein to tuna is 84 grams of protein for 12 ounces of tuna.

Front

If 3 days out of 7 were rainy, what is the ratio of rainy days to total days?

Back

The ratio of rainy days to total days is 3:7.