Ratios & Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, 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: as a fraction (a/b), with a colon (a:b), or with the word 'to' (a to b).

Front

What is a ratio table?

Back

A ratio table is a tool used to organize pairs of numbers that form a ratio, helping to identify relationships between the quantities.

Front

If the ratio of apples to oranges is 2:3, how many oranges are there if there are 8 apples?

Back

There are 12 oranges. (Using the ratio 2:3, if 2 parts represent 8 apples, then 3 parts represent 12 oranges.)

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then solve for the unknown variable.

Front

Back

x = 5.

Front

What is the missing value in the ratio 4:___ = 12:18?

Back

The missing value is 6.

Front

If a ratio is 5:2, what is the total number of parts?

Back

The total number of parts is 7 (5 + 2).

Front

Find the missing value in the ratio table: 1:4, 2:__, 3:12.

Back

The missing value is 8.