Ratios Flashcard Review

Front

What is a Ratio?

Back

A comparison of two quantities.

Front

Write in fraction form: 2 out of 100.

Back

2/100

Front

What number is missing in the ratio 5:2 if there are 35 students?

Back

12 (5 parts boys, 2 parts girls, total 7 parts, 35/7 = 5, so girls = 2 parts = 2*5 = 10)

Front

Which ratio is written incorrectly?

Back

X and Y (correct forms are X:Y, X/Y, or X to Y)

Front

If the ratio of boys to girls is 5:2, how many total girls are there in a class of 35 students?

Back

10 girls.

Front

What does it mean when a ratio is simplified?

Back

It means reducing the ratio to its simplest form where the numerator and denominator have no common factors other than 1.

Front

How do you express a ratio of 3 to 4 in fraction form?

Back

3/4

Front

What is the ratio of 10 apples to 5 oranges?

Back

2:1

Front

If a recipe calls for a ratio of 2:3 for sugar to flour, how much flour is needed for 4 cups of sugar?

Back

6 cups of flour (4 cups sugar * 3/2 = 6 cups flour).

Front

What is the ratio of 15 to 25 in simplest form?

Back

3:5