Ratios & Rates

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 simplify a ratio?

Back

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

Front

What is the ratio of 20:30 in simplest form?

Back

2:3

Front

If Patrick has 2 black, 3 red, and 5 white toy cars, what is the ratio of red toy cars to all toy cars?

Back

3:10

Front

If there are 5 boys and 7 girls, what is the ratio of girls to boys?

Back

7 to 5

Front

How do you express a ratio as a fraction?

Back

To express a ratio as a fraction, write the first term as the numerator and the second term as the denominator.

Front

What is the simplest form of the ratio 21 wins to 14 losses?

Back

3/2

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit.

Front

Find the unit rate: In 3 days she walked 18 laps. How many laps per day?

Back

6 laps per day.

Front

What does it mean to compare ratios?

Back

Comparing ratios involves determining which of two or more ratios is greater, smaller, or if they are equivalent.