Adding and Subtracting Fractions (with Like Denominators)

Which of these is true?

• To add and subtract fractions, you have to have the same numerators.

• To add and subtract fractions, you have to have the same denominators.

• To add and subtract fractions, you have to have the same numerators AND denominators.

• You can add and subtract fractions no matter what.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

The top number of a fraction is...

• the numerator

• the denominator

• the fraction

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

The bottom number of a fraction is...

• the numerator

• the denominator

• the fraction

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

 $\frac{1}{3}+\frac{3}{3}=?$  

•  $\frac{2}{3}$  

•  $\frac{3}{3}$  

•  $\frac{4}{6}$   

•  $\frac{4}{3}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{4}{6}+\frac{2}{6}=?$  

•  $\frac{6}{6}$  

•  $\frac{6}{12}$  

•  $\frac{2}{6}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{6}{10}-\frac{4}{10}=\ ?$  

•  $\frac{2}{10}$  

•  $\frac{10}{10}$  

•  $\frac{6}{10}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{5}{11}-\frac{2}{11}=\ ?$  

•  $\frac{3}{11}$  

•  $\frac{7}{11}$  

•  $\frac{4}{11}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Lisa got a candy bar from her friend.
She ate 3/5 of it before dinner.
How much does she have leftover?

•  $\frac{3}{5}$  

•  $\frac{2}{5}$  

•  $\frac{5}{5}$  

Tags

CCSS.4.NF.B.3A

Mark and Jen are cleaning their garage.

Mark cleans 2/7 of the garage and Jen cleans 3/7 of the garage.

How much of the garage is still a mess?

• $\frac{5}{7}$

• $\frac{2}{7}$

• $\frac{5}{14}$

• $\frac{3}{7}$

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D