Adding and Subtracting Fractions and Mixed Numbers

To add or subtract fractions you must have

• Common numerators

• Common denominators

• Common multiples

• common factors

Tags

CCSS.4.NF.A.2

Add or subtract the...

• numerators (tops)

• denominators (bottoms)

Tags

CCSS.4.NF.B.3

CCSS.4.NF.C.5

 $\frac{1}{4}$   $+$   $\frac{2}{4}$  

•  $\frac{3}{4}$  

•  $\frac{3}{8}$  

•  $\frac{3}{16}$  

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

 $\frac{3}{8}$   $+$   $\frac{4}{8}$   $=$  

•  $\frac{1}{4}$  

•  $\frac{9}{8}$  

•  $\frac{7}{8}$  

•  $\frac{7}{16}$  

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

 $\frac{10}{12}$   $-$   $\frac{3}{12}$   $=$  

•  $\frac{7}{12}$  

•  $\frac{13}{12}$  

•  $\frac{6}{12}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the Least Common Denominator?
 $\frac{1}{6}\ and\ \frac{2}{3}$  

• 6

• 3

• 18

• 30

Tags

CCSS.4.NF.A.2

CCSS.4.OA.B.4

What is the Least Common Denominator?
 $\frac{6}{7}\ and\ \frac{3}{4}$  

• 7

• 4

• 28

• 56

Tags

CCSS.4.NF.A.2

Find the least common denominator.
 $\frac{2}{3}\ and\ \frac{4}{15}$  

• 15

• 3

• 45

• 30

Tags

CCSS.4.NF.A.2

CCSS.4.NF.A.1

When the numerator is greater than the denominator it is called a(n) ____

• proper fraction

• improper fraction

• mixed number

• all of the above

Tags

CCSS.4.NF.B.3

A whole number and a fraction together is called a(n)____

• proper fraction

• improper fraction

• mixed number

• all of the above

Tags

CCSS.3.NF.A.1