EOG Review: Ratios and Proportions

Front

What is a ratio?

Back

Front

How do you simplify a ratio?

Back

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

Front

What is a proportion?

Back

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply and then divide to find the unknown value.

Front

What is the relationship between ratios and fractions?

Back

Front

If a recipe calls for a ratio of 2:3 of sugar to flour, how much sugar is needed for 6 cups of flour?

Back

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 maintain the same relationship.

Front

If there are 5 red marbles and 3 blue marbles, what is the ratio of red to blue marbles?

Back

The ratio of red to blue marbles is 5:3.

Front

How can you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both parts of the ratio by their GCD.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, such as miles per hour.