Addition of fractions with different denominators

 $\frac{1}{7}\ +\ \frac{4}{7}$  

•  $\frac{5}{7}$  

•  $\frac{3}{7}$  

•  $\frac{2}{7}$  

•  $\frac{1}{7}$  

Add these Fractions

• $\frac{2}{4}$

• $\frac{3}{4}$

• $\frac{5}{4}$

• 1

Add the following like fractions. $\frac{4}{9}+\frac{3}{9}$ 

• 9/7

• 2/3

• 3/2

• 7/9

• 1/5
• 1 1/3
• 1 1/5
• 1 3/5

Merlyn ate  $\frac{3}{8}$ pizza while her friend Kristine ate  $\frac{4}{8}$  of the same pizza. How much pizza did they eat in algether?

•  $1$  

•  $\frac{5}{8}$  

•  $\frac{7}{8}$  

•  $\frac{9}{8}$  

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

 $\frac{6}{9}+\frac{1}{2}$  

•  $\frac{21}{18}$  

•  $\frac{7}{10}$  

•  $\frac{6}{18}$  

•  $\frac{7}{11}$  

1/2+1/2= ?

• 
• 1/3

• 
• 4/5

 $\frac{4}{10}+\frac{4}{5}$  

•  $\frac{60}{20}$  

•  $\frac{8}{15}$  

•  $\frac{60}{50}$  
  

 $\frac{1}{2}+\frac{2}{3}$ =

•  $\frac{3}{5}$  

•  $\frac{7}{6}$  
  

•  $\frac{3}{6}$