Two common multiples of 3&7 less then 50
21 and 42 are the common multiples ...
3 = 1 X 37 = 1 X. 7Therefore LCM = 1 X 3 X 7LCM = 21 If I times 21 by 2 then I should get another multiple So 21 X 2 = 42Hence the two multiples of 7 and 3 below 50 are 21 and 42.