question_answer 1)

Find first three common multiples of (a) 6 and 8                (b) 12 and 18

Answer:

                (a) Some multiples of \[6=6,12,18,,30,36,42,\]\[,54,60,66,,...\] Some multiples of \[8=8,16,,32,40,\]\[,56,64,,80,88,96,...\] Hence, first three common multiples are 24, 48 and 72. (b) Some multiples of \[12=12,24,,48,6084,96,,120,132,...\] Some multiples of \[18=18,,54,,90,,126,144,...\] Hence, first three common multiples are 36, 72 and 108.