Add and Subtract Fractions Unlike

• 2/5
• 5/6
• 4/6
• 1/5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the the next step to finding this answer?

• Add the numerators (1+1=2)

• Multiply 12 X 1 for both fractions to find a new numerator
  

• Multiply to find each new numerator by the multiple used to get 12. (3 X1) (4 X 1)

• This is a mistake, you don't need to convert to twelfths

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the difference of the given problem?

• 
• 
• 
• 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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

• add

• subtract

Tags

CCSS.7.NS.A.1C

(Choose one that is true) When you add or subtract fractions with unlike denominators you..

• Add both the numerators and denominators

• Change the denominator by picking a random number then divide

• Find the least common multiple of both denominators

• none of these are true

Tags

CCSS.7.NS.A.1C

3/10 - (-1/4)

• 11/20

• 3/15

• 15/20

• 3/4

Tags

CCSS.7.NS.A.1C

(-7/8) + 1/3

• -13/24

• -11/24

• 11/12

• 12/24

Tags

CCSS.7.NS.A.1C

(-1/15) + (-3/5)

• -2/3

• 2/3

• 1/4

• -1/4

Tags

CCSS.7.NS.A.1C

3/8 - (-1/4)

• 5/8

• 3/4

• 4/8

• -5/8

Tags

CCSS.7.NS.A.1C

What number could be a common denominator for these two fractions?
2/3   and   3/4

• 3

• 4

• 7

• 12