Adding and Subtracting Fractions with Negatives

What should you do first when adding fractions with different denominators?

• Find a common denominator

• Add the numerators directly

• Subtract the numerators

• Multiply the denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How do you handle negative signs when adding fractions?

• Place the negative in the numerator

• Ignore the negatives

• Cancel them out

• Add them to the denominator

Tags

CCSS.7.NS.A.1C

What is the result of adding -2/3 and 1/2 after finding a common denominator?

• -1/6

• 1/6

• 5/6

• -5/6

Tags

CCSS.7.NS.A.1C

What is the common denominator for fractions with denominators 4 and 8?

• 8

• 16

• 4

• 12

What happens to the denominator when adding or subtracting fractions?

• It remains the same

• It is multiplied

• It is summed

• It is ignored

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How do you modify a fraction with an external negative sign?

• Move the negative to the numerator

• Add the negative to the denominator

• Ignore the negative

• Multiply the fraction by -1

Tags

CCSS.7.NS.A.1D

What is the final result of the operation -1/4 + -3/8?

• -1/2

• 1/2

• 5/8

• -5/8

Tags

CCSS.7.NS.A.1C

When subtracting fractions, what is the first step?

• Subtract the numerators

• Find a common denominator

• Multiply the fractions

• None of the above

Tags

CCSS.7.NS.A.1C

What rule is applied when subtracting fractions with negative numbers?

• Keep-Change-Opposite

• Multiplication rule

• Addition rule

• Cancellation rule

Tags

CCSS.7.NS.A.1D

What is the result of subtracting -11/12 and -1/2 after finding a common denominator?

• 17/12

• -17/12

• -5/12

• 5/12

Tags

CCSS.7.NS.A.1C