Ratios/Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 3:4), as a fraction (e.g., 3/4), or in words (e.g., 3 to 4).

Front

What is a ratio table?

Back

A ratio table is a table that shows the relationship between two quantities and helps to find equivalent ratios.

Front

If the ratio of red circles to blue stars is 3:4, how many red circles are there if there are 12 blue stars?

Back

There are 9 red circles. (Using the ratio 3:4, if 4 parts = 12 stars, then 3 parts = 9 circles.)

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different (e.g., 2:3 is equivalent to 4:6).

Front

How do you find a missing value in a ratio?

Back

To find a missing value in a ratio, set up a proportion and cross-multiply to solve for the unknown.

Front

What is the ratio of 8 apples to 12 oranges?

Back

The ratio is 2:3 when simplified.

Front

If you have a ratio of 5:2, how many total parts are there?

Back

There are 7 total parts (5 + 2 = 7).

Front

How do you scale a ratio?

Back

To scale a ratio, multiply or divide both terms of the ratio by the same number.

Front

What is the relationship between ratios and fractions?

Back

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