Add and Subtract Fractions

What must you have to add and subtract fractions?

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

 $\frac{3}{4}+\frac{1}{8}=$  

•  $\frac{7}{8}$  

•  $\frac{4}{12}$  

•  $\frac{4}{8}$  

•  $\frac{2}{4}$  

 $\frac{1}{5}+\frac{3}{10}=$  

•  $\frac{4}{15}$  

•  $\frac{5}{10}$  

•  $\frac{4}{10}$  

•  $\frac{4}{5}$  

 $\frac{7}{8}-\frac{3}{4}=$  

•  $\frac{1}{8}$  

•  $\frac{4}{8}$  

•  $\frac{1}{2}$  

•  $\frac{11}{12}$  

 $\frac{1}{2}+\frac{1}{8}=$  

•  $\frac{2}{10}$  

•  $\frac{2}{8}$  

•  $\frac{5}{8}$  

•  $\frac{1}{5}$  

 $\frac{1}{4}+\frac{2}{4}=$  

•  $\frac{1}{8}$  

•  $\frac{3}{4}$  

•  $\frac{3}{8}$  

•  $\frac{2}{4}$  

 $\frac{3}{4}-\frac{1}{4}=$  

• 2

•  $\frac{2}{0}$  

•  $\frac{2}{4}$  

•  $\frac{3}{8}$  

• 1/12
• 1
• 2/35
• 23/25

What expression shows a different way to express:

 $\frac{3}{8}$  

•  $\frac{8}{8}-\frac{2}{8}$  

•  $\frac{7}{8}-\ \frac{1}{8}-\frac{3}{8}$  

•  $\frac{2}{8}+\frac{2}{8}$  

•  $\frac{8}{8}-\frac{2}{8}+\frac{5}{8}$  

Anna bought some cloth. She used  $\frac{5}{8}$  of a yard for a school project.  She has  $\frac{2}{8}$  of a yard left.  How much cloth did Anna buy?

•  $\frac{3}{8}$  of a yard

•  $\frac{7}{16}$  of a yard

•  $\frac{7}{8}$  of a yard

•  $\frac{8}{8}$  of a yard