Understanding Ratios

Front

What is a ratio?

Back

A comparison of two quantities.

Front

If there are 18 students in a class and 5 have A's, 7 have B's, how many have C's?

Back

6 students have C's.

Front

What is the ratio of students that have C's to those that have A's if there are 6 C's and 5 A's?

Back

6 to 5.

Front

Mrs. Trimble makes 12 chocolate chip cookies and 10 peanut butter cookies. What is the ratio of peanut butter cookies to chocolate chip cookies?

Back

10:12 or 5:6.

Front

If Miss Williams plants 8 roses and 6 sunflowers, what is the ratio of roses to sunflowers?

Back

8:6 or 4:3.

Front

When 11 students prefer Pizza Hut and 13 prefer Marco's, what is the ratio of students that prefer Marco's to Pizza Hut?

Back

13:11.

Front

How do you simplify the ratio 10:15?

Back

Divide both sides by 5 to get 2:3.

Front

What is the ratio of 20 apples to 15 oranges?

Back

20:15 or 4:3.

Front

If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?

Back

2:3.

Front

What is the ratio of 5 red marbles to 10 blue marbles?

Back

5:10 or 1:2.