Ratios and Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How can ratios be expressed?

Back

Ratios can be expressed in three ways: as a fraction (a/b), with a colon (a:b), or in words (a to b).

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two quantities with different units, such as speed (miles per hour) or price (cost per item).

Front

If there are 1 PC for every 5 Macs, how many Macs are there if there are 24 computers in total?

Back

There are 20 Macs.

Front

How do you calculate words per minute?

Back

To calculate words per minute, divide the total number of words typed by the total number of minutes taken.

Front

If Justin types 408 words in 4 minutes, how many words does he type per minute?

Back

He types 102 words per minute.

Front

What is the purpose of a ratio table?

Back

A ratio table is used to organize and compare ratios, helping to find missing values and understand relationships between quantities.

Front

What is the missing number in the ratio table if the ratio is 3:4 and one number is 76?

Back

The missing number is 76.

Front

What is the missing number in the ratio table if the ratio is 5:6 and one number is 88?

Back

The missing number is 88.

Front

What is the relationship between ratios and fractions?

Back

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