Multiplying a mixed number by a whole number

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 1 3/4.

Tags

CCSS.3.NF.A.3C

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator. For example, 2 1/3 = (2*3 + 1)/3 = 7/3.

Front

What is the first step in multiplying a mixed number by a whole number?

Back

Convert the mixed number to an improper fraction.

Front

If you have 1 1/2 and you multiply it by 3, what is the first step?

Back

Convert 1 1/2 to an improper fraction: 1 1/2 = 3/2.

Front

What is the formula for multiplying a fraction by a whole number?

Back

Multiply the numerator of the fraction by the whole number and keep the same denominator.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

What is 3/4 multiplied by 2?

Back

3/4 * 2 = 6/4 = 1 1/2.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

Do you need to find a common denominator when multiplying fractions?

Back

No, you do not need a common denominator to multiply fractions.

Tags

CCSS.5.NF.B.6

Front

What is the result of multiplying 2 1/2 by 2?

Back

2 1/2 = 5/2, so 5/2 * 2 = 5.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Front

How do you simplify the result of a multiplication of fractions?

Back

Divide the numerator and denominator by their greatest common factor.

Tags

CCSS.5.NF.B.6

Front

What is 5/6 multiplied by 3?

Back

5/6 * 3 = 15/6 = 2 1/2.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C