This math topic focuses on practicing how to find the lowest common denominator to compare two fractions. It includes multiple-choice questions where the student must determine the appropriate common denominator between pairs of fractions. The problems range in complexity by altering the combination of denominators presented, and each question provides several options to choose from. This is an introductory level exercise aimed at enhancing understanding of comparing fractions through common denominators.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Fraction Comparison - Find Common Denominator - Basic - One Changed Denominator Worksheet

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Fraction Comparison - Find Common Denominator - Basic - One Changed Denominator
1
What lowest common denominator would you use to compare these fractions?
A LaTex expression showing 1 over 5 \;\; \bigcirc \;\;1 over 15
a
8
b
13
c
24
d
9
e
10
f
15
2
What lowest common denominator would you use to compare these fractions?
A LaTex expression showing 1 over 7 \;\; \bigcirc \;\;1 over 14
a
17
b
15
c
14
d
6
e
22
f
10
3
What lowest common denominator would you use to compare these fractions?
A LaTex expression showing 1 over 2 \;\; \bigcirc \;\;1 over 6
a
14
b
4
c
6
d
13
e
15
f
10
4
What lowest common denominator would you use to compare these fractions?
A LaTex expression showing 1 over 3 \;\; \bigcirc \;\;1 over 9
a
8
b
1
c
12
d
10
e
9
f
2
5
What lowest common denominator would you use to compare these fractions?
A LaTex expression showing 1 over 2 \;\; \bigcirc \;\;1 over 4
a
3
b
12
c
4
d
1
e
2
f
10
6
What lowest common denominator would you use to compare these fractions?
A LaTex expression showing 1 over 3 \;\; \bigcirc \;\;1 over 6
a
15
b
3
c
10
d
5
e
6
f
4