Adding and Subtracting Negative and Positive Fractions and Mixed Numbers

(-⅚) - (⅗)

• -1   13/30

• 1   13/30

• -7/30

• 7/30

4/9 + (-2/3) = 

• 1 1/9

• -1 1/9

• 2/9

• -2/9

- 3/4  -  (-2/3)

• 1/12

• -1/12

• -17/12

• _1    5/12

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

What is a mixed number?

• A whole number

• A whole number combined with another whole number

• A whole number with a portion of a number

• A portion of a number

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3

• 4

• 24

• 12

Convert to a mixed number.

• 1  5/7

• 5/7

• 2  5/7

• 1  7/5

Is this a correct answer?

• Yes, the student correctly added.

• No, you cannot add unlike denominators

• No, 5 + 7 is not 12

• No, 2 + 3 is not 5

Which of the answers show the subtraction problem correctly rewritten as an addition problem?
−8 − (−4)

• −8 − 4

• −8 + 4

• 8 + (−4)

• −8 + (−4)