Ratios and Proportions

Front

What is a ratio?

Back

A comparison of two units.

Front

Two ratios that are equal are called...

Back

Proportions.

Front

Unit rates are...

Back

Ratios whereby the amount given is per 1 unit.

Front

What would the proportion look like for the following example? 12 girls have brown eyes and 10 girls have blue eyes. If 72 girls have brown eyes, how many have blue eyes?

Back

Front

Which is an example of a complex fraction?

Back

Front

What is a proportion?

Back

An equation that states two ratios are equal.

Front

How do you find a unit rate?

Back

Divide the first quantity by the second quantity.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

What is the cross-multiplication method used for?

Back

To solve proportions by multiplying the means and extremes.

Front

If 5 apples cost $2, what is the unit rate?

Back

The unit rate is $0.40 per apple.