To change a decimal to a percent, move the decimal two places to the right
and affix the percent sign.
EXAMPLE:Change each decimal to a percent:
(a) 0.83
(b) 0.05
(c) 4.32
(d) 0.137
SOLUTION:
(a) 0.83¼83%
(b) 0.05¼5%
(c) 4.32¼432%
(d) 0.137¼13.7%
To change a percent to a fraction, drop the percent sign and place the
number in the numerator of a fraction whose denominator is 100. Reduce or
simplify if necessary.
EXAMPLE:Change each percent to a fraction:
(a) 40%
(b) 66%
(c) 125%
(d) 8%
SOLUTION:
(a) 40%¼
40
100
¼
2
5
(b) 66%¼
66
100
¼
33
50
(c) 125%¼
125
100
¼
5
4
¼ 1
1
4
(d) 8%¼
8
100
¼
2
25
To change a fraction to a percent, change the fraction to a decimal and
then change the decimal to a percent.
36 REFRESHER III Percents