Multiplying Positive and Negative Fractions

What is the first step in multiplying fractions as described in the video?

• Convert mixed numbers to improper fractions

• Simplify the fraction

• Multiply straight across

• Cross-cancel common factors

Tags

CCSS.5.NF.B.6

What does cross-cancelling involve?

• Adding fractions together

• Multiplying numerators with denominators directly

• Reducing fractions before multiplying

• Converting fractions to decimals

Tags

CCSS.5.NF.B.6

In the example, what is the result of multiplying -3/8 by 11/12 using cross-cancelling?

• -33/96

• 11/32

• 33/96

• -11/32

Tags

CCSS.5.NF.B.6

What common factor is used to simplify -3 and 12 in the example?

• 2

• 3

• 4

• 6

What is the result of the traditional method of multiplying -3/8 by 11/12?

• 11/32

• 33/96

• -33/96

• -11/32

Tags

CCSS.7.NS.A.2A

What is the final simplified form of the product of 56 and -41/15 using cross-cancelling?

• 9/2

• -2/9

• -9/2

• 2/9

Tags

CCSS.7.NS.A.2A

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

• Divide the whole number by the denominator and add the numerator

• Multiply the whole number by the numerator and add the denominator

• Multiply the whole number by the denominator and add the numerator

• Add the whole number to the numerator and multiply by the denominator

What is the improper fraction form of 1 and 3/5?

• 8/5

• 3/5

• 5/3

• 5/8

After converting to improper fractions, what is the result of multiplying -5/2 by 8/5?

• -4

• 4

• 20/10

• -20/10

Tags

CCSS.7.NS.A.2A

What is the simplified result of multiplying -1 by 4 in the context of the last example?

• -4

• 4

• 1/4

• -1/4

Tags

CCSS.7.NS.A.2A