First it adds by 3. Then on 4, 8, 12 it adds by 4. On 5 and 10 it adds by 5. So i guess it is 3, 4, 5.
34
8
8 is not a factor of 34.
4.25
8/34 = 4/17
8/34 = 0.23529 approx.
34 x 8 = 272
8 and 3/34 inches are exactly 8 and 3/34 inches.
-34 x 8 = -272
34
4.25
60