List all the common multiples of 4 and 7 that are smaller than 50. Give the answer(s) in ascending order. (Eg 1, 2, 3)
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48
Multiples of 7: 7, 14, 21, 28, 35, 42, 49
Common multiples: 28
Answer(s): 28