W1D3 Add/Subtract Fractions

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

Tags

CCSS.7.NS.A.1C

3/9 + 4/9

• 7/18
• 7/9
• 12/9
• 12/81

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

  $\frac{8}{9}$  -  $\frac{1}{3}$  =

•  $\frac{7}{6}$  

•  $\frac{5}{9}$  

•  $\frac{2}{3}$  

•  $\frac{8}{27}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{3}{5}$ + $\frac{1}{4}$  = 

•  $\frac{4}{20}$  

•  $\frac{12}{20}$  

•  $\frac{7}{20}$  

•  $\frac{17}{20}$ 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Add these fractions: $\frac{1}{2}$ + $\frac{1}{3}$ =

•  $\frac{5}{6}$ 

•  $\frac{4}{6}$  

•  $\frac{1}{5}$ 

•  $\frac{3}{5}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Zane ate $\frac{1}{4}$ of a pizza, and Tyler ate $\frac{6}{8}$ of a different pizza. How much more pizza did Tyler eat than Zane?

• $\frac{6}{32}$

• $\frac{2}{8}$

• $\frac{1}{2}$

• $\frac{5}{4}$

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Which of these numbers could NOT be a common denominator for these two fractions?
 $\frac{1}{6}$   and  $\frac{1}{4}$  

• 12

• 18

• 24

• 36

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the least common denominator for $\frac{1}{3}$ and $\frac{3}{4}$ ?

• 6

• 4

• 3

• 12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Simplify the fraction
 $\frac{15}{20}$  

•  $\frac{5}{10}$ 

•  $\frac{3}{4}$ 

•  $\frac{2}{3}$ 

•  $\frac{1}{5}$ 

Tags

CCSS.4.NF.A.1

What is the first step in solving this problem? 
⅘ + ½ =

• Add the top parts of the fraction
• Rewrite the fractions in the simplest form. 
• Find a common denominator. 
• Make each fraction into an improper faction. 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2