21 percent or twenty-one out of one hundred is already in simplest form. Twenty-one and one hundred have no common factors (excepting 1).
210 percent as a fraction in simplest form is 21/10
21% can not be put into simplest form. The lowest it will go is 21/100
4.2 percent in fraction in simplest form = 42/1000 or 21/500
It is: 84% = 21/25 as a fraction in its simplest form
21/25
42% as a fraction in its simplest form is 21/50
42% = 21/50
21/25
210% = 21/10
84% = 84/100 = 21/25
21/25
16.8% = 21/125 in it's simplest form