Writing Ratios - Practice #1 edited

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 in the form 'a to b' or a:b.

Front

How can ratios be expressed?

Back

Ratios can be expressed in three different ways: as a fraction (a/b), with a colon (a:b), or in words (a to b).

Front

If the ratio of boys to girls is 3:4, how many boys are there if there are 28 girls?

Back

There are 21 boys. (Using the ratio 3:4, if 4 parts represent 28 girls, then 3 parts represent 21 boys.)

Front

What does a ratio of 5 to 3 mean in terms of quantity?

Back

It means for every 5 units of the first quantity, there are 3 units of the second quantity.

Front

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

Back

Add the parts of the ratio together. For example, in a ratio of 2:3, the total is 2 + 3 = 5 parts.

Front

What is the ratio of school apps to total apps if Kelly has 10 apps and 5 are school apps?

Back

The ratio is 5 to 10, which simplifies to 1 to 2.

Front

If there are 2 dogs, 4 cats, and 5 hamsters, what is the ratio of cats to dogs?

Back

The ratio of cats to dogs is 4:2, which simplifies to 2:1.

Front

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

Back

The ratio of girls to total students is 7 to 12.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both sides of the ratio by their greatest common divisor (GCD).

Front

What is the ratio of men to women if there are 5 men and 3 women?

Back

The ratio of men to women is 5:3.