40
.4 = .40 = --- = 40%
100
80
.8 = .80 = --- = 80%
100
25
.25 = --- = 25%
100
33-1/3
.33-1/3% = ------ = 33-1/3%
100
50
.50 = --- = 50%
100
87-1/2
.87-1/2 = ------ = 87-1/2%
100
If the decimal has more than two decimal places, the figures after the
second one are written as a fraction of a per cent, as,--
25-1/2
.255 = ------ = 25-1/2%.
100
16-3/10
.163 = ------- = 16-3/10%.
100
To change a common fraction to per cent: