Ratio Tables

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 to b' or a:b.

Front

How do you simplify a ratio?

Back

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

Front

What is a ratio table?

Back

A ratio table is a table that displays pairs of numbers that form equivalent ratios.

Front

If the ratio of A to B is 2:3, what is the value of B if A = 8?

Back

B = 12, because 8 is 2/5 of the total ratio (2+3), and B is 3/5 of the total.

Front

What is the missing value in the ratio table if the ratio is 4:5 and the first value is 16?

Back

The missing value is 20, because 16/4 = 4 and 4*5 = 20.

Front

How do you find a missing value in a ratio table?

Back

To find a missing value, set up a proportion using the known values and solve for the unknown.

Front

What is the equivalent ratio of 10:15?

Back

The equivalent ratio is 2:3, obtained by dividing both terms by 5.

Front

If a recipe calls for a ratio of 1:4 for sugar to flour, how much flour is needed for 2 cups of sugar?

Back

8 cups of flour are needed, because 2 cups of sugar multiplied by 4 equals 8 cups of flour.

Front

What does it mean to scale a ratio?

Back

Scaling a ratio means multiplying both terms of the ratio by the same number to create an equivalent ratio.

Front

In a ratio of 3:7, what is the total number of parts?

Back

The total number of parts is 10, because 3 + 7 = 10.