Adding and Subtracting Fractions with Different Denominators

4/5 + 1/3

• 17/15

• 12/15

• 4/5

• 3/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

I ate 1/3 of a pizza. Cody ate 1/2 of the same pizza. How much did we eat of the pizza?

• 5/6

• 1 whole

• 2/6

• 9/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

I ate 1/4 of a chicken. Harry ate 1/3 of the same chicken. When we are done eating, how much of the chicken is left over?

• 4/12

• 3/12

• 2/12

• 5/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

12/18 - 3/6

• 1/6

• 3/18

• 4/9

• 6/18

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When you add or subtract fractions with unlike denominators you..

• Find the greatest common factor to change your denominator

• Change the denominator by picking a random number then divide

• Find the least common multiple to change your denominator

• none of these are true

Tags

CCSS.7.NS.A.1C

3/4 - 2/10

• 11/20

• 9/10

• 11/24

• 9/4

Tags

CCSS.7.NS.A.1C

4/5 + 3/8 (be sure to simplify)

• 32/40

• 1 7/40

• 2 5/7

• 1 1/2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

5/10 + 8/5

• 5/9

• 1/10

• 2 1/10

• 2 2/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

3/5 - 5/10

• 1/10

• 8/5

• 1/5

• 8/0

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Pick the steps that are true

• find the common denominators, add or subtract, change the numerators

• multiply the denominators, add or subtract the numerators, simplify, divide the fraction

• Find the least common denominators, what you do to the top do to the bottom, add or subtract, simplify

• add or subtract, simplify, multiply denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2