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Least common multiple

Year 5 maths · Fieldbook Learning

Name ______________________ Date __________

This is the smallest common denominator for two fractions.

What is the least common multiple of 8 and 11?
What is the least common multiple of 7 and 13?
What is the least common multiple of 6 and 7?
What is the least common multiple of 15 and 6?
What is the least common multiple of 5 and 6?
What is the least common multiple of 9 and 7?
What is the least common multiple of 13 and 11?
What is the least common multiple of 13 and 12?
What is the least common multiple of 4 and 6?
What is the least common multiple of 15 and 9?
What is the least common multiple of 7 and 15?
What is the least common multiple of 9 and 15?
What is the least common multiple of 16 and 20?
What is the least common multiple of 20 and 9?
What is the least common multiple of 6 and 19?
What is the least common multiple of 6 and 17?
What is the least common multiple of 17 and 9?
What is the least common multiple of 10 and 18?
What is the least common multiple of 9 and 10?
What is the least common multiple of 8 and 17?

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20 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

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Answer key: Least common multiple

88
91
42
30
30
63
143
156
12
45
105
45
80
180
114
102
153
90
90
136