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: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 part-to-part ratio?

Back

A part-to-part ratio compares two parts of a whole, such as the number of red marbles to blue marbles.

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares a part to the entire group, such as the number of red marbles to the total number of marbles.

Front

If there are 5 red circles and 5 blue circles, what is the ratio of red circles to total circles?

Back

5:10

Front

If there are 11 stars and 5 circles, what is the ratio of stars to circles?

Back

5:11

Front

What is the ratio of total shapes to circles if there are 4 circles and 3 other shapes?

Back

7:3

Front

How do you simplify the ratio 10:5?

Back

You can simplify it to 2:1 by dividing both sides by 5.

Front

What does it mean if a ratio is 1:3?

Back

It means for every 1 part of the first quantity, there are 3 parts of the second quantity.

Front

What is the ratio of 8 apples to 4 oranges?

Back

The ratio is 2:1.