The lowest common multiple of 12 and 27 is 108.
12 x 9 = 108 and
27 x 4 = 108 .
So she has to buy 9 packs of cards ... 108 of them ... and 4 packs of envelopes.
13. Is 8
14. Is 10
15. Is D
2+_3/458 find the product
5 + 1/4 by definition cannot be whole.
5 + 1/4 = 5.00 + 0.25 = 5.25
5.25 isn't whole.