Ratios

Front

What is a ratio?

Back

A ratio is a way to compare two quantities by using division. It shows how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

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

Front

What does it mean to simplify a ratio?

Back

Simplifying a ratio means reducing it to its simplest form by dividing both sides by their greatest common factor.

Front

If there are 4 apples and 2 bananas, what is the ratio of apples to bananas?

Back

The ratio of apples to bananas is 4:2, which simplifies to 2:1.

Front

In a class of 10 students, if 4 are boys and 6 are girls, what is the ratio of girls to boys?

Back

The ratio of girls to boys is 6:4, which simplifies to 3:2.

Front

What is the total number of items if the ratio of red marbles to blue marbles is 3:2 and there are 15 red marbles?

Back

If there are 15 red marbles, then there are 10 blue marbles (since 15 is 3 parts, and 10 is 2 parts). The total is 15 + 10 = 25 marbles.

Front

If the ratio of pink flowers to blue flowers is 3:6, how many pink flowers are there if there are 72 flowers in total?

Back

There are 24 pink flowers. (3 parts of 9 = 27, so 3/9 of 72 = 24).

Front

What is the ratio of pears to all fruits if there are 4 apples, 2 bananas, and 5 pears?

Back

The ratio of pears to all fruits is 5:11.

Front

How do you find the total number of items from a ratio?

Back

To find the total number of items from a ratio, add the parts of the ratio together and then use that sum to find the total based on the known quantity.

Front

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

Back

The ratio of girls to boys is 7:5.