Add and Subtract Fractions with Unlike Denominators

Add the numerators

Make sure the numerators are the same

Make sure the denominators are the same

Add the denominators together

1

5

6

12

 $\frac{4}{6}$  because  $\frac{1}{3}$  +  $\frac{3}{3}$  =  $\frac{4}{6}$  

 $\frac{2}{6}$  because  $\frac{1}{3}$  x  $\frac{2}{2}$  = $\frac{2}{6}$  

9

16

12

8

 $\frac{14}{16}$  because  $\frac{5}{8}$  x $\frac{2}{2}$  = $\frac{7}{16}$  and  $\frac{1}{4}$  x $\frac{4}{4}$  = $\frac{5}{16}$  so   $\frac{7}{16}$  + $\frac{5}{16}$  = $\frac{12}{16}$  

  $\frac{7}{8}$  because  $\frac{1}{4}$  x $\frac{2}{2}$  = $\frac{2}{8}$  so  $\frac{5}{8}$  + $\frac{2}{8}$  = $\frac{7}{8}$  

Yes

No

$\frac{3}{3}$

$\frac{4}{4}$

$\frac{2}{2}$

$\frac{12}{12}$

 $\frac{2}{5}$  - $\frac{3}{5}$  

 $\frac{2}{15}$  + $\frac{1}{15}$  

 $\frac{6}{15}$  - $\frac{5}{15}$  

 $\frac{2}{5}$  - $\frac{1}{3}$  

 $\frac{3}{16}$  yard

 $\frac{1}{4}$  yard

 $\frac{1}{6}$  yard

 $\frac{3}{8}$  yard