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Mathematics for IGCSE & O level - Number (Section 1 - No. 28)

What is the LCM of 15 and 20?
5
30
60
300

Εξήγηση

Multiples of 15: 15, 30, 45, 60, 75... Multiples of 20: 20, 40, 60, 80... The lowest common multiple is 60.

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