Yes, 1.5 - 0.5 = 1
S. Pierre Yameogo was born on 1955-05-15.
G. S. Pradeep was born on 1972-05-15.
J. S. Lewis was born on 1972-05-15.
Hall S. Lusk died on 1983-05-15.
Paul S. Walsh was born on 1955-05-15.
Russell S. Kokubun was born on 1948-05-15.
15 = XV, 05 = V and 88 = LXXXVIII, so 15-05-88 would be XV-V-LXXXVIII.
1/15 s
.05x=7474/.05 = xx = 1480100% is 1480, 1/15 is 6.6666% so 6.666% of 1480 = 98.66698.6666
It is: 15 because 3*5 = 15 and 1*15 = 15
s
15 is XV 05 is V 1989 is MCMLXXXIX