Ratios

Front

What is a ratio?

Back

A ratio is a mathematical way to compare two or more quantities, showing the relative size of one quantity to another.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 3:4), as a fraction (e.g., 3/4), or with the word 'to' (e.g., 3 to 4).

Front

What does the ratio 6:10 represent?

Back

The ratio 6:10 means that for every 6 parts of one quantity, there are 10 parts of another quantity.

Front

If there are 4 apples and 6 oranges, what is the ratio of apples to oranges?

Back

The ratio of apples to oranges is 4:6, which can be simplified to 2:3.

Front

What is the ratio of boys to girls if there are 5 boys and 7 girls?

Back

The ratio of boys to girls is 5:7.

Front

True or False: A ratio can only compare two quantities.

Back

False. A ratio can compare two or more quantities.

Front

If the ratio of cats to dogs is 3:2, how many dogs are there if there are 9 cats?

Back

If there are 9 cats, then there are 6 dogs, since the ratio 3:2 means for every 3 cats, there are 2 dogs.

Front

What is the simplified form of the ratio 8:12?

Back

The simplified form of the ratio 8:12 is 2:3.

Front

How do you find the total parts in a ratio?

Back

To find the total parts in a ratio, add the numbers in the ratio together. For example, in the ratio 3:5, the total parts are 3 + 5 = 8.

Front

If the ratio of red to blue marbles is 1:4, how many red marbles are there if there are 20 blue marbles?

Back

If there are 20 blue marbles, then there is 5 red marbles, since the ratio 1:4 means for every 1 red marble, there are 4 blue marbles.