Adding and Subtracting Fractions (like denominators)

A baker buys a 5 lb bag of sugar. She uses 1 2/3 lb to make some muffins and 2 1/3 lb to make a cake. How much sugar does she have left?

• 2 lb

• 1 1/4 lb

• 1 1/2 lb

• 1 lb

Dylan had a whole cupcake in his lunch bag. He ate 1/4 of it. How much does he have left?

• 1/4
• 1/2
• 1/3
• 3/4

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2

CCSS.3.NF.A.3

Add 3/4 + 1/2

• 1/2
• 2/3
• 1 1/4
• 1 1/2

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

¹/₅ + ³/₅

• ²/₅
• ⁴/₅
• ³/₅
• 1

Tags

CCSS.3.NF.A.1

²/₇ + ³/₇

• ¹/₇
• ⁶/₇
• ⁵/₇
• ⁴/₇

¹¹/₁₂ - ⁵/₁₂

• ⁷/₁₂
• ⁵/12
• ⁸/₁₂
• ²/₁₂

⁴/₉ + ²/₉

• ⁸/₉
• 1
• ⁶/₉
• ⁵/₁₈

⁷/₈ - ²/₈

• ⁵/₁₆
• ⁹/₈
• ⁶/₈
• ⁵/₈

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

⁴/₈ + ³/₈

• ⁷/₈
• ¹/₈
• ⁷/₁₆
• ¹²/₈

³/₁₀ + ⁷/₁₀

• ¹⁰/₂₀
• ⁴/₁₀
• ¹⁰/₁₀ OR 1
• ⁴/₂₀

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2

CCSS.3.NF.A.3