Adding and Subtracting Fractions and Mixed Numbers

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

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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.7.NS.A.1C

Find the sum:  $\frac{2}{5}+\frac{3}{10}$  

•  $\frac{35}{50}$  

•  $\frac{7}{10}$  

•  $\frac{1}{10}$  

•  $\frac{5}{50}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $9\ -\ 3\ \frac{3}{8}$  

•  $6\ \frac{3}{8}$  

•  $6\ \frac{5}{8}$  

•  $5\ \frac{5}{8}$  

•  $5\ \frac{4}{8}$  

Tags

CCSS.7.NS.A.1C

Tim has a board that is $\frac{5}{6}$  feet long.  He painted $\frac{2}{18}$ feet of his board last night. How much more does Tim have left to paint?

•  $\frac{13}{18}$  feet

•  $\frac{7}{24}$  feet

•  $\frac{7}{18}$  feet

•  $\frac{3}{7}$  feet

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Monique wants to bake a cake. She needs  $2\frac{1}{8}$ cups of sugar, and $1\frac{5}{24}$ cups of flour. How many cups of ingredients will she use in all?

• $3\frac{8}{24}$ cups

• $3\frac{6}{24}$ cups

• $3\frac{8}{32}$ cups
  

• $3\frac{3}{24}$ cups
  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{9}{10}-\frac{3}{4}$  

•  $\frac{6}{6}$  

•  $\frac{3}{20}$  

•  $\frac{12}{40}$  

•  $\frac{3}{10}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $10-4\ \frac{7}{8}$  

•  $5\ \frac{2}{8}$  

•  $5\ \frac{1}{8}$  

•  $4\ \frac{1}{8}$  

•  $6\ \frac{1}{8}$  

Tags

CCSS.7.NS.A.1C

 $\frac{2}{10}+\ \frac{3}{10}+\frac{6}{10}=$  

•  $\frac{12}{30}$  

•  $2\ \frac{9}{10}$  

•  $1\ \frac{1}{10}$  

•  $\frac{10}{10}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $1\frac{1}{2}\ +\frac{3}{4}$  

• 3

•  $2\frac{1}{4}$  

•  $1\frac{4}{6}$  

•  $1\frac{2}{3}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2