Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Tags

CCSS.7.RP.A.2A

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then solve for the unknown variable.

Tags

CCSS.7.RP.A.2C

Front

What are equivalent fractions?

Back

Equivalent fractions are different fractions that represent the same value or proportion.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

If the ratio of red apples to green apples is 4:3, how many red apples are there if there are 12 green apples?

Back

There are 16 red apples.

Front

What is the formula to find a missing value in a proportion?

Back

If a/b = c/d, then ad = bc.

Front

How can you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms by their greatest common divisor.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first term is the numerator and the second term is the denominator.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Marin can write 4 pages in 22 minutes, how many pages can she write in 1 hour?

Back

She can write 10.91 pages in 1 hour.

Tags

CCSS.6.RP.A.3B

Front

What is the first step in solving a word problem involving proportions?

Back

Identify the quantities involved and set up a proportion based on the relationships described.

Tags

CCSS.7.RP.A.2C