Adding and Subtracting Fractions with common denominator

What is ¹/₈ + ⁵/₈?

• 1
• ⁶/₁₆ or ³/₈
• ⁶/₈ or ³/₄
• ²/₄ or ¹/₂

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is ³/₄ + ¹/₄?

• 1 or ⁴/₄
• ³/₄ 
• ¹⁰/₁₆ or ⁵/₈ 
• ¹/₄

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

• 3/10
• 3/5
• 3/25
• 15/5

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

• 5/14
• 3/7
• 5/7
• 5/14

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the sum in simplest form?
2/7 + 4/7

• 6/14
• 1/2
• 2/3
• 6/7

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

If we have common denominators and we want to add or subtract them we need to

• add/subtract the numerator and slide over the denominator.

• add/subtract the numerator and add/subtract the denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{1}{4}$   $+$   $\frac{2}{4}$  

•  $\frac{3}{4}$  

•  $\frac{3}{8}$  

•  $\frac{3}{16}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{3}{8}$   $+$   $\frac{4}{8}$   $=$  

•  $\frac{1}{4}$  

•  $\frac{9}{8}$  

•  $\frac{7}{8}$  

•  $\frac{7}{16}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{5}{6}$   $-$   $\frac{1}{6}$   $=$  

•  $\frac{4}{6}$  

•  $\frac{2}{6}$  

•  $\frac{7}{6}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{4}{8}$   $-$   $\frac{2}{8}$   $=$  

•  $\frac{2}{4}$  

•  $\frac{2}{8}$  

•  $\frac{6}{8}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D