Mastering Multiplication of Positive and Negative Fractions

Why is multiplying fractions considered easier than other operations?

• Because it involves addition.

• Because it requires a common denominator.

• Because it only involves multiplying numerators and denominators.

• Because it involves subtraction.

Tags

CCSS.5.NF.B.6

What should you remember to include when multiplying fractions with different signs?

• The common denominator.

• The negative sign if the result is negative.

• The absolute value.

• The reciprocal of the fraction.

Tags

CCSS.7.NS.A.2A

What is the result of multiplying -2/3 by 7/8?

• -7/12

• 14/24

• -14/24

• 7/12

Tags

CCSS.7.NS.A.2A

How can you convert a whole number to a fraction?

• By adding 1 to it.

• By multiplying it by 2.

• By subtracting 1 from it.

• By putting it over 1.

Tags

CCSS.3.NF.A.3C

What is the simplified form of -20/15?

• -4/3

• -5/3

• -1/3

• -2/3

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

• By dividing the numerator by the denominator and writing the remainder over the divisor.

• By multiplying the numerator by the denominator.

• By adding the numerator and the denominator.

• By subtracting the numerator from the denominator.

What is the first step when multiplying a fraction by a mixed number?

• Add the fraction and the mixed number.

• Convert the mixed number to an improper fraction.

• Subtract the fraction from the mixed number.

• Multiply the fraction by the reciprocal of the mixed number.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

What is the result of multiplying -1/3 by -11/4?

• 1/12

• -1/12

• -11/12

• 11/12

Tags

CCSS.7.NS.A.2A

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

• By dividing the numerator by the denominator.

• By adding the whole number to the fraction.

• By multiplying the whole number by the denominator and adding the numerator.

• By subtracting the numerator from the denominator.

What is the simplified form of -36/10?

• -3 3/5

• -3 1/5

• -3 6/10

• -3 2/5