Add Subtract Fractions Positive and Negative

Solve the problem. HINT: the subtraction makes the second fraction negative.

Rules:

Same sign: add and keep the sign

Different signs: subtract and keep the sign of the bigger number

Solve. Rules

Same sign: add and keep the sign

Different signs: subtract and keep the sign of the bigger number

Hint: Change the fractions to decimals first.

Rules:

Same sign: add and keep the sign

Different signs: subtract and keep the sign of the bigger number

-3/7 + 4/5

• 43/35

• -13/35

• 13/35

• 17/35

• Answer not given

-3/8 + 1/4

• 4/32

• -1/8

• 1/8

• -4/32

-13/7 - (-3/4)

• 31/28

• 28/31

• -31/28

• 28/31

- 1/3 + (-1/6)

• -1/2

• -1/3

• 1/3

• -1/9

• Answer not given

• -2/15

• 2/15

• -3 7/15

• 2 2/15

• Answer not given

 ¼ − (-¾)

• -1/2

• 4/0

• 1

• None of the above

Following the integer rules, would you add or subtract the fractions?

• add, the answer would be positive

• add, the answer would be negative

• subtract, the answer will be positive

• subtract the answer will be negative