150.
Half Century.
One century = 100 years so Half a century = 50 years (5 decades)
1/2
No 1 half is equal to 1/2 or 0.5
no one half is equal to 1/2
It is: 1/2+1/2 = 1
1 century = 100 years :D
Two halves equal a whole 2 half-dollars equal $1
1 century is equal to 100. So five and half centuries mean 500+100/2= 500+50=550 years.
Half of 1/3 is 1/6
5
1 half is equal to 50% as a percentage.