Adding and Subtracting Fractions

Find the sum:  $\frac{1}{8}+\frac{6}{8}$  

• $\frac{7}{16}$

• $\frac{5}{16}$

• $\frac{7}{8}$

• $\frac{5}{8}$

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Enter  $\frac{5}{6}$  as a sum of unit fractions

Tags

CCSS.4.NF.B.3B

Garry's cat ate  $\frac{3}{5}$  of a bag of cat treats in September and  $\frac{1}{5}$   of the same bag of cat treats in October.
 
What part of the bag of cat treats did Gary's cat eat in both months?

•  $\frac{3}{5}$  

•  $\frac{2}{5}$  

•  $\frac{4}{10}$  

•  $\frac{4}{5}$  

Tags

CCSS.4.NF.B.3A

 Jin is putting colored sand in a jar. She filled  $\frac{2}{10}$   of the jar with blue sand and  $\frac{4}{10}$  of the jar with pink sand. 

Describe one way to model the part of the jar filled with sand by completing the statement:

Using a rectangle, divide into ___________ Shade 2 tenths, and then shade___________ tenths. 


(a)  

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

• $\frac{1}{4}+\frac{3}{4}=\frac{4}{4}$

• $\frac{1}{4}+\frac{4}{4}=\frac{5}{4}$

• $\frac{4}{4}+\frac{3}{4}=\frac{7}{4}$

• $\frac{1}{8}+\frac{3}{8}=\frac{7}{8}$

Tags

CCSS.4.NF.B.3A