Verified answer

Answers:

1.) 4 and 10

LCM = 20

2.) 12 and 24

LCM = 24

3.) 15, 24 and 27

LCM = 1,080

Explanation:

1.) Find the Least Common Multiple (LCM) of 4 and 10

Multiples of 4:

4, 8, 12, 16, 20, 24 and 28

Multiples of 10:

10, 20, 30 and 40

Therefore,  the Least Common Factor (LCM) of 4 and 10 is 20

2.) Find the Least Common Multiple (LCM) of 12 and 24

Multiples of 12:

12, 24, 36 and 48

Multiples of 24:

24, 48 and 72

Therefore, the Leas Common Multiple ( LCM) of 12 and 24 is 24

3.) Find the Least Common Multiple (LCM) of 15, 24 and 27

Multiples of 15:

15, 30, 45, 60, ….., 1065, 1080, 1095 and 1110

Multiples of 24:

24, 48, 72, …., 1056, 1080, 1104 and 1128

Multiples of 27:

27, 54, 81, 108, …., 1026, 1053, 1080, 1107 and 1134

Therefore,  the  Least Common Multiple (LCM) of 15, 24 and 27 is 1080

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