Unit 2 Part 1 - Ratios, Equivalent Ratios and Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two numbers, 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 an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different.

Front

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

Back

The ratio of flour to sugar is 2:3.

Front

How can you find a missing number in a ratio table?

Back

To find a missing number in a ratio table, use the relationship between the known numbers to calculate the unknown.

Front

What is the boy:girl ratio in a class with 15 boys and 20 girls?

Back

The boy:girl ratio in lowest terms is 3:4.

Front

If Ernie travels 195 miles in 3 hours, what is his speed in miles per hour?

Back

Ernie's speed is 65 miles per hour.

Front

How far will Ernie travel in 5 hours at the same speed?

Back

Ernie will travel 325 miles in 5 hours.

Front

If a cashier can serve 2 customers in 8 minutes, how many can he serve in 30 minutes?

Back

The cashier can serve 7.5 customers in 30 minutes.

Front

What is the first step to solve a ratio problem?

Back

The first step is to understand the relationship between the quantities involved.