Understanding 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 in the form 'a:b'.

Front

How do you simplify a ratio?

Back

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

Front

If the ratio of A to B is 3:2, what does this mean?

Back

It means for every 3 parts of A, there are 2 parts of B.

Front

In a ratio of 7:3, what is the total number of parts?

Back

The total number of parts is 7 + 3 = 10 parts.

Front

How do you find the number of items in a specific part of a ratio?

Back

To find the number of items in a specific part of a ratio, divide the total quantity by the total number of parts and then multiply by the number of parts of interest.

Front

What is the ratio of 25% in simplest form?

Back

25% can be expressed as the ratio 1:4.

Front

If there are 30 flowers in total and the ratio of roses to tulips is 7:3, how many tulips are there?

Back

There are 9 tulips.

Front

In a recipe, if the ratio of flour to sugar is 3:2 and you use 12 cups of flour, how many cups of sugar do you need?

Back

You need 8 cups of sugar.

Front

In a box of crayons with a ratio of red to blue to green as 2:3:1, how many crayons are blue if there are 24 total?

Back

There are 8 blue crayons.

Front

In a bag of marbles, if the ratio of red to blue is 5:3 and there are 24 marbles total, how many are red?

Back

There are 12 red marbles.