Adding Positive and Negative Fractions Explained

What is the first step in adding fractions with different denominators?

• Add the numerators directly

• Find a common denominator

• Subtract the smaller fraction from the larger one

• Multiply the fractions

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

In the example -1/2 + -1/3, what is the common denominator used?

• 3

• 2

• 6

• 5

Tags

CCSS.7.NS.A.1C

What is the equivalent fraction of -1/2 when the common denominator is 6?

• -2/6

• -1/6

• -3/6

• -4/6

In the example -4/5 + 1/10, what is the equivalent fraction of -4/5 with a denominator of 10?

• -6/10

• -2/10

• -8/10

• -4/10

Tags

CCSS.7.NS.A.1C

When adding -4/5 and 1/10, what is the final numerator after finding the common denominator?

• -8

• -9

• -7

• -6

Tags

CCSS.7.NS.A.1C

In the example -7/9 + 17/18, what is the common denominator used?

• 18

• 36

• 9

• 27

Tags

CCSS.7.NS.A.1C

What is the equivalent fraction of -7/9 when the common denominator is 18?

• -21/18

• -7/18

• -14/18

• -10/18

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

In the example -7/9 + 17/18, what is the final numerator after finding the common denominator?

• 1

• 2

• 3

• 4

Tags

CCSS.7.NS.A.1C

What is the final answer for the example -7/9 + 17/18?

• 1/18

• 2/18

• 4/18

• 3/18

Tags

CCSS.7.NS.A.1C

What should you do if you are confused about the addition rules for fractions?

• Skip the problem

• Guess the answer

• Ask the teacher for clarification

• Ignore the confusion and move on

Tags

CCSS.7.NS.A.1C