Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What does part-to-part ratio mean?

Back

A part-to-part ratio compares two different parts of a whole.

Front

What does part-to-whole ratio mean?

Back

A part-to-whole ratio compares a part of a group to the entire group.

Front

How can you express a ratio?

Back

A ratio can be expressed in three ways: using a colon (e.g., 2:3), as a fraction (e.g., 2/3), or in words (e.g., '2 to 3').

Front

If there are 4 apples and 3 oranges, what is the part-to-part ratio of apples to oranges?

Back

4:3

Front

In a fruit bowl with 4 apples, 2 bananas, and 5 pears, what is the ratio of pears to all fruit?

Back

5:11

Front

What is the ratio of birds to total animals if there are 4 birds and 6 snakes?

Back

4/10 or 2/5

Front

If a bag contains 3 blue marbles, 2 red marbles, and 5 yellow marbles, what is the ratio of red to yellow marbles?

Back

2 to 5

Front

What is the total number of parts in the ratio 4:3?

Back

7 parts (4 + 3).

Front

If the ratio of boys to girls in a class is 3:2, how many girls are there if there are 12 boys?

Back

8 girls (since 3 parts = 12 boys, 2 parts = 8 girls).