Ratios, Proportions, Rates and Percents Test

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 write a ratio?

Back

A ratio is written as two numbers separated by a colon, for example, 2:3.

Front

What does a ratio of 2:3 mean?

Back

It means for every 2 of the first quantity, there are 3 of the second quantity.

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, you can cross-multiply and then divide to find the unknown value.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first number is the numerator and the second number is the denominator.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two quantities with different units, such as miles per hour.

Front

What is a percent?

Back

A percent is a ratio that compares a number to 100, represented by the symbol '%', for example, 25% means 25 out of 100.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

Front

What is the percent equivalent of 1/10?

Back

10%.