Mastering Fraction Addition and Subtraction

Sarem, Robin, and Braylan are sharing a pizza. Sarem eats 1/4 of the pizza, Robin eats 1/5 of the pizza, and Braylan eats 3/10 of the pizza. What fraction of the pizza is left?

• 4/5

• 3/20

• 17/20

• 4/20

Tags

CCSS.4.NF.C.5

What is the sum of these fractions?

Tags

CCSS.4.NF.C.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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Tags

CCSS.4.NF.C.5

CCSS.4.NF.B.4

Tags

CCSS.4.NF.A.1

Tags

CCSS.4.NF.A.1

CCSS.4.NF.A.2

Tags

CCSS.4.NF.C.5