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Find the first 3 common multiples of each set of numbers

3.a) 3, 4 and 6
3.b) 2, 3 and 4
3.c) 4, 5, and 10
Explain your work

User Ggirodda
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2 Answers

6 votes
A I think is the site answer
User Dexter Legaspi
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5 votes
a) 12 (6x2),(4x3),(3x4)
b) 12 (4x3),(3x4),(2x6)
c) 20 (10x2),(5x4),(4x5)
*A way to solve these questions is always to start with the largest number and start multiplying that number by 1 to see if it could be a LCM and then move to multiplying the biggest number by 2, and so on, until you get an answer that satisfies all the other numbers.
User Varinder Singh
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