Need help finding the LCD on Math Zone?

Question

Find the least common denominator (LCD) for fractions with the given denominators.
42 and 98
how could I also possibly enter the answer in a box that looks like this

Answer 1

least common denominator (LCD):

LCD of 42 and 98

multiples of 42 are 42, 84, 126, 168, 210, 252, 294, 336, 378,........

multiples of 98 are  98, 196, 294, 392,  .........

least common denominator of 42 and 98 is 294.