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Finding the Lowest Common Denominator

Authored by Barbara White

Mathematics

4th - 6th Grade

11 Questions

CCSS covered

Finding the Lowest Common Denominator
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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the least common denominator of 1/9 and 2/3?

6
3
9
21

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of these numbers could NOT be a common denominator for these two fractions?
2/4   and   3/8

32
12
8
24

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the lowest common denominator of these fractions: 2/7 and 2/21

7

21

18

147

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the least common denominator of 1/5 and 2/10.

10

5

50

15

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the least common denominator of 1/6 and 5/12.

18

12

6

1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the least common denominator of 3/4 and 3/8.

3

4

8

12

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of these numbers could NOT be a common denominator for 1/6 and 5/18?

6

18

36

108

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