Subtracting fractions with unlike denominators

How to subtract fractions with unlike denominators

First you pick the one with the you can change like  $\frac{5}{3}-\frac{5}{6}$   you can change the three to a 6 right? you have to multiply to get the answer! So that is 3x2= 6. When you get the same denominators. What you do to the bottom you do to the top so we have a three right and we multiplied that by 2 so you must do that to the top so that is 10 so then you can subtract! if you wanna or if it is possible you can reduce

$\frac{7}{2}-\frac{5}{6}$

Solve the answer!!
(use paper and pencil)

• $\frac{2}{6}$

• $\frac{4}{7}$

• $\frac{21}{6}$

• $\frac{15}{6}$

• $\frac{10}{9}$

$\frac{5}{6}-\frac{5}{2}$

Solve the answer!!
(use paper and pencil)

• $\frac{7}{3}$

• $\frac{4}{7}$

• $\frac{21}{6}$

• $\frac{0}{6}$
  

 $\frac{8}{2}-\frac{3}{10}$ 

Solve the answer!!
(use paper and pencil)

(Hint: Must change both denominators)

•  $\frac{74}{9}$ 

•  $\frac{74}{20}$ 

•  $\frac{85}{6}$  

•  $\frac{70}{20}$  
  

Tags

CCSS.7.NS.A.1C

 $\frac{9}{4}-\frac{4}{7}$ 

Solve the answer!!
(use paper and pencil)

•  $\frac{97}{8}$  

•  $\frac{63}{28}$ 

•  $\frac{24}{28}$ 

•  $1\ \frac{28}{28}$  
  

•  $\frac{63}{28}$  

Tags

CCSS.7.NS.A.1C

 $\frac{5}{2}-\frac{6}{10}$ 

Solve the answer!!
(use paper and pencil)

(Must reduce

•  $\frac{25}{10}$  
  

•  $\frac{19}{10}$  

•  $\frac{20}{10}$  
  

•  $1\ \frac{28}{28}$  
  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2