Adding and Subtracting Fractions

 $\frac{3}{4}-\frac{-2}{4}$  

• 1/4

• 5/4

• -5/4

• -1/4

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{1}{5\ }+\frac{-3}{5}$  

• -4/5

• -2/10

• -2/5

• -3/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{2}{3}-\left(-\frac{5}{3}\right)$  

• 7/3

• 1 1/3

• 3/6

• -3/3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{1}{2}+\frac{3}{8}$  

• 4/10

• 4/8

• 7/8

• 2/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Is the answer going to be positive or negative:

 $-\frac{5}{9}+\frac{2}{3}$  

• positive

• negative

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Is the answer going to be positive or negative:

 $\frac{7}{10}-\frac{4}{5}$  

• positive

• negative

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What has to be done before you can add or subtract fractions and mixed numbers?

• Make sure there are common denominators.

• Reduce the fractions.

• Change any mixed numbers to improper fractions.

• Make sure the top numbers match.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What would you do first on this problem:

 $\frac{9}{12}+\ \frac{2}{6}$  

• Simplify the first fraction.

• Go ahead and add them (they're ready to go!)

• Get common denominators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2