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.

Front

How do you express a ratio?

Back

Ratios can be expressed in three ways: as a fraction (e.g., 4/5), with a colon (e.g., 4:5), or with the word 'to' (e.g., 4 to 5).

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

What is a part-to-part ratio?

Back

A part-to-part ratio compares two different parts of a whole (e.g., 4 apples to 3 oranges).

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares one part to the entire whole (e.g., 4 apples to 10 total fruits).

Front

If the ratio of tenants to cars is 3:5 and there are 30 tenants, how many cars are there?

Back

50 cars.

Front

What is an example of a real-life ratio?

Back

4 meatballs : 1 cup of sauce.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor.

Front

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

Back

A 1:1 ratio means that the two quantities are equal.

Front

What is the ratio of 12 noodles to 4 meatballs?

Back

The ratio is 3:1.