Question 850575
12/5 = (a + z),
a/z=2/3
a = 24/25,   z = 36/25
a = 24/25,   z = 36/25

36/25 = 24/25 + 4d
12/25=4d
3/25=d

24/25,27/25,30/25,33/25,36/25

an = 24/25 + 3/25(n - 1)