Question

Find the LCM.
(i) $36,42$
(ii) $15,25,30$
(iii) $18,42,48$
(iv) $4,12,20$
(v) $24,40,80,120$

Answer 1

(i) ​​

LCM = $2\times 2\times 3\times 3\times 7=252$
(ii)

LCM = $2\times 3\times 5\times 5=150$
(iii)

LCM = $2\times 2\times 2\times 2\times 3\times 3\times 7=1008$
(iv)

LCM = $2\times 2\times 3\times 5=60$
(v)

LCM = $2\times 2\times 2\times 2\times 3\times 5=240$