Ratios Flashcard

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:b'.

Front

How do you find the total number of parts in a ratio?

Back

To find the total number of parts in a ratio, add the numbers in the ratio together.

Front

If the ratio of boys to girls is 3:2, how many parts are there in total?

Back

There are 5 parts in total (3 + 2 = 5).

Front

What does it mean if a ratio is simplified?

Back

A simplified ratio means that the numbers in the ratio have been reduced to their smallest whole number form.

Front

How can you use a ratio to solve a problem involving total quantities?

Back

You can set up a proportion based on the ratio to find the unknown quantity when the total is known.

Front

If a car travels 60 miles in 2 hours, what is its speed in miles per hour?

Back

The speed is 30 miles per hour (60 miles ÷ 2 hours).

Front

What is a ratio table?

Back

A ratio table is a collection of equivalent ratios that helps to visualize the relationship between two quantities.

Front

In a fruit salad, if the ratio of strawberries to blueberries is 4:3 and there are 21 fruits, how many strawberries are there?

Back

There are 12 strawberries.

Front

How do you convert a ratio into a fraction?

Back

To convert a ratio into a fraction, write the first quantity as the numerator and the second quantity as the denominator.

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions state that two ratios are equal.