More Practice: Adding and Subtracting Unlike Fractions

What is the least common denominator for this equation? $\frac{3}{16}-\frac{1}{4}$  

• 16

• 8

• 4

• 32

What is the least common denominator for this equation? $\frac{5}{10}+\frac{2}{15}$  

• 30

• 15

• 20

• 5

What is the least common denominator for this equation? $\frac{7}{9}-\frac{1}{8}$  

• 18

• 72

• 56

• 27

When you add integers with different signs, you:

• Wing it

• Subtract and keep the sign of the larger absolute value

• Subtract and switch the signs

• Add the numbers as they are

Same Sign ___________

• Sum

• Subtract

• Simplify

• Summary

 $\frac{1}{2}+\frac{1}{4}=$  

•  $\frac{3}{4}$  

•  $\frac{3}{6}$  

•  $\frac{2}{4}$  

•  $\frac{1}{8}$  

 $\frac{19}{20}-\frac{3}{10}=$  

•  $\frac{15}{20}$  

•  $\frac{22}{20}$  

•  $\frac{13}{20}$  

•  $\frac{16}{20}$  

 $\frac{8}{15}-\left(-\frac{1}{5}\right)=$  

•  $\frac{9}{15}$  

•  $\frac{7}{15}$  

•  $\frac{1}{3}$  

•  $\frac{11}{15}$  

 $\frac{5}{8}+\frac{1}{6}=$  

•  $\frac{6}{14}$  

•  $\frac{6}{24}$  

•  $\frac{19}{24}$  

•  $\frac{38}{48}$  

 $\frac{3}{5}-\frac{3}{10}=$  

•  $\frac{3}{10}$  

•  $\frac{5}{10}$  

•  $\frac{0}{10}$  

•  $\frac{6}{10}$