Fraction Operations

Which operations require finding a common denominator?

• multiplication 
• addition 
• addition and subtraction 
• division 

When do you use KCF (multiplying by the reciprocal.)

• multiplication and division 
• addition 
• subtraction 
• only division 

What is the reciprocal of a fraction?

• when you convert a mixed number into an improper fraction 
• the first fraction in a problem 
• when you flip the second fraction during KCF
• the new numerators when you are adding and subtracting fractions 

Do you use the GCF or LCM to find the common denominator?

• GCF
• LCM

What is the recriprocal of 5

• 5/1
• 1/5

Which fraction is equivalent to ¾?

• 7/12
• 15/20
• 12/20
• 1  1/4

Find the missing numerator:
2/3 = ?/9

• 1/9
• 4/9
• 6/9
• 7/9

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3
• 4
• 24
• 12

Select the largest fraction.

• 1/8
• 1/2
• 1/4
• 1/3

write as a mixed number  22/3

• 7  1/3
• 7  1/2
• 7  1/4
• 7  1/9