Adding and Subtracting Rational Fractions

Fill in the blank for the following rule: If the rational numbers have same signs, ______________ and keep the common sign.

• add

• subtract

• multiply

• divide

Tags

CCSS.7.NS.A.1C

(-⅚) - (⅗)

• -1   13/30

• 1   13/30

• -7/30

• 7/30

Tags

CCSS.7.NS.A.1C

4/9 + (-2/3) = 

• 1 1/9

• -1 1/9

• 2/9

• -2/9

Tags

CCSS.7.NS.A.1C

-1 ⁷/₈ + (-3 ¹/₂)

• 5 ³/₈

• -5 ³/₈

• 1 ⁵/₈

• -1 ⁵/₈

Tags

CCSS.7.NS.A.1C

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.1C

- 3/4  -  (-2/3)

• 1/12

• -1/12

• -17/12

• _1    5/12

Tags

CCSS.7.NS.A.1C

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

Tags

CCSS.7.NS.A.1C

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

• add

• subtract

Tags

CCSS.7.NS.A.1C

-3/7 + 4/5=

• 43/35

• -13/35

• -43/35

• 13/35

Tags

CCSS.7.NS.A.1C

-1 1/4  + -2 1/2 =  

• - 3 3/4

• - 3 1/4

• -2 3/4

• -3 1/2

Tags

CCSS.7.NS.A.1C