It is a fraction of the form (2*k)/(8*k) where k is any non-zero integer or a common factor of 2 and 8.
2/5
2/8 x 5/8= 10/62= 5/31
3/100
47/5
use a fraction
1/2
23/8 There are 16 eighths in 2 (2 x 8) plus 7 = 23
9/2
2 eighths? 2 eighths?
0.11111111111111111111111111111111
1/4 or a quater
eight tenths