Fraction Review 2022

Is this a correct answer?

• Yes, the student correctly added.
• No, you cannot add unlike denominators
• No, 5 + 7 is not 12
• No, 2 + 3 is not 5

What is the least common denominator (the new bottom number) for $\frac{1}{3}$ and $\frac{3}{4}$ ?

• 6

• 4

• 3

• 12

• 10 hours

Add these fractions.
 $\frac{1}{2}$  +  $\frac{1}{3}$   =

•  $\frac{5}{6}$  
  

•  $\frac{2}{5}$  
  

•  $\frac{1}{5}$  

• 1

What number could be a common denominator for these three fractions?
 $\frac{1}{2}$  and  $\frac{1}{3}$   and  $\frac{1}{4}$  ?

• 9

• 8

• 12

• 6

What is the the next step to finding this answer?

• Add the numerators (1+1=2)
• Multiply 12 X 1 for both fractions to find a new numerator
  
• Multiply to find each new numerator by the same number you multiplied the denominator.

• This is a mistake, you don't need to convert to twelfths

 $7\frac{1}{5}-3\frac{4}{5}$  

•  $3\frac{1}{5}$  

•  $3\frac{4}{5}$  

•  $3\frac{2}{5}$  

•  $4\frac{3}{5}$