Ratios

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 do you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor (GCD).

Front

What is the ratio of 3 apples to 5 oranges?

Back

3:5

Front

If there are 10 dogs and 15 cats, what is the ratio of dogs to total animals?

Back

10 to 25 or 2:5

Front

What does it mean if a ratio is 1:4?

Back

It means for every 1 of the first quantity, there are 4 of the second quantity.

Front

How do you convert a ratio to a fraction?

Back

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

Front

What is the ratio of 6 red balls to 4 blue balls?

Back

6:4 or simplified, 3:2.

Front

If the ratio of boys to girls in a class is 2:3, how many girls are there if there are 10 boys?

Back

There are 15 girls.

Front

What is the relationship of 2:5 in terms of percentages?

Back

2:5 can be expressed as 28.57% for the first quantity and 71.43% for the second quantity.

Front

How do you find the total when given a part-to-whole ratio?

Back

Add the parts of the ratio together and then use the known part to find the total.