Dana ordered 6 pizzas for her party and each pizza is sliced into quarters. She says in order to find out how many slices there are, she needs to calculate 6 ÷ 1/4 Which multiplication expression will also solve the problem of how many slices there are?
A.24 x 1/6
B.4 x 1/6
C.6 x 1/4
D.6 x 4
Please Help!!