19 halves as a decimal is 9.5.
0.38
Three halves is one and a half, or 1.5 when written as a decimal.
2.0 is the decimal of four halves
2.5
3.5
1.5.
2.0
1.5
44/2:= 44 ÷ 2= 22.0 in decimal
25/2 = 12.5
15 / 2 = 7.5
Two halves = 2*0.5 = 1 (or 1.0, if you must)
3 halves is written as 1.5.