Convert them to improper fraction and then multiply.
No, it depends whether or not the two integers are positive or negative.
3/8 × 7/1 = 21/8 or 2 and 5/8 miles.
common ratio = a4/a3 = a3/a2
8/a3 = a3/18
(a3)^2 = 8 * 18
(a3)^2 = 144
a3 = 12 or a3 = -12
common ratio = 8/12 or common ratio = 8/(-12)
common ratio = 2/3 or common ratio = -2/3
Answer: 12 or -12