Adding Fractions with Unlike Denominators

The numerator tell us?

• How many parts of the whole we have.

• How many equal parts the whole is divided into.

• The weather for today.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

The denominator tell us?

• how many parts of the whole we have.

• How many equal parts the whole is divided into.

• Nothing

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What fraction does this fraction strip represent.

• $\frac{1}{2}$

• $\frac{3}{5}$

• $\frac{5}{3}$

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

What is a good least common denominator for the fractons  $\frac{2}{5}\ and\ \frac{3}{7}$  

• 13

• 35

• 10

• 14

Tags

CCSS.4.NF.A.2

 $\frac{1}{3}+\frac{2}{5}=$  

•  $\frac{3}{8}$  

•  $\frac{11}{15}$  

•  $\frac{2}{15}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{3}{4}+\frac{1}{6}=$  

•  $\frac{11}{12}$  

•  $\frac{3}{24}$  

•  $\frac{4}{10}$  

•  $\frac{2}{5}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{1}{2}+\frac{1}{4}=$  

•  $\frac{2}{8}$  

•  $\frac{3}{8}$  

•  $\frac{2}{6}$  

•  $\frac{3}{4}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{2}{3}+\frac{1}{5}=$  

•  $\frac{3}{15}$  

•  $\frac{13}{15}$  

•  $\frac{2}{8}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{3}{7}+\frac{1}{3}=$  

•  $\frac{16}{21}$  

•  $\frac{4}{10}$  

•  $\frac{3}{21}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{3}{8}+\frac{1}{2}=$  

•  $\frac{3}{16}$  

•  $\frac{4}{10}$  

•  $\frac{7}{8}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2