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 (e.g., 2/3), with a colon (e.g., 2:3), or with the word 'to' (e.g., 2 to 3).

Front

What is a ratio table?

Back

A ratio table is a table that shows equivalent ratios, allowing you to see the relationship between different quantities.

Front

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

Back

To find a missing value in a ratio table, use equivalent ratios to set up a proportion and solve for the unknown.

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 isolate the variable.

Front

Back

c = 8.

Front

What is the relationship between ratios and multiplication?

Back

Ratios can be scaled up or down by multiplying or dividing both terms by the same number.

Front

If 2 tablets are needed for 1 quart, how many tablets are needed for 4 quarts?

Back

8 tablets.

Front

Back

x = 35.