Half of a cent is $0.005 or 0.5¢. You can think of it this way: One cent is 1/100 of a dollar, or $0.01, which is equivalent to 10/1000 of a dollar, or $0.010. Half of $0.010 is $0.005.
It is 0.5 cents.
$0.005
2.5
We write .5 or 0.5 as the decimal for one half.
A half which is 1/2 is 0.5 as a decimal
Thirty and one half
2 and a half.
Half of 4.5 in decimal form is 2.25
We write two and a half as 2.5 in decimal form.
50 and a half cents as a decimal is 0.505
12 and one half as a decimal is 12.5