Fraction Practice Question Preview (ID: 6703)


Finding Denominators, Scale Factor, Etc. TEACHERS: click here for quick copy question ID numbers.

Two fractions have the following denominators: 8 and 12. What is the least common denominator?
a) 12
b) 48
c) 24
d) 8

You need to add two fractions. What is the first thing you look for?
a) I don't look at anything. I just add the numerators and the denominators.
b) I check to see if the numbers are mixed numbers.
c) I check to see if the numerators are the same.
d) I check to see if the denominators are the same.

My common denominator is 24. The fraction that needs to be changed has a denominator of 3. What is the scale factor you will use to change the fraction?
a) 1
b) 8
c) 4
d) 2

You are adding two fractions that have the same denominators. What is the correct procedure to be able to solve?
a) Add the numerators; add the denominators; reduce.
b) Subtract the numerators; keep the denominator the same; reduce.
c) Add the numerators; keep the denominator the same.
d) Add the numerators; keep the denominator the same; reduce.

Two fractions have the following denominators: 6 and 15. What is the least common denominator?
a) 30
b) 12
c) 15
d) 90

My common denominator is 18. The fraction that needs to be changed has a denominator of 6. What is the scale factor you will use to change the fraction?
a) 18
b) 3
c) 6
d) 1

Two fractions have the following denominators: 9 and 12. What is the least common denominator?
a) 108
b) 27
c) 24
d) 36

What is the first step when changing an improper fraction to a mixed number?
a) You don't need to change it; just leave it alone.
b) Flip the fraction.
c) Divide the numerator into the denominator.
d) Divide the denominator into the numerator.

My common denominator is 32. The fraction that needs to be changed has a denominator of 4. What is the scale factor you will use to change the fraction?
a) 8
b) 4
c) 6
d) 32

My common denominator is 54. The fraction that needs to be changed has a denominator of 9. What is the scale factor you will use to change the fraction?
a) 1
b) 9
c) 6
d) 45

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