2.1 = 2 and 1/10
(10 * 2 + 1)/10
= 21/10
-------------simplest form
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21/40
10/21 is the simplest form.
The fraction 21/24 is already in its simplest form.
0.84 as a fraction in simplest form = 21/25
To convert 3.21 to a fraction, we can write it as 3 + 0.21. Since 0.21 can be written as 21/100, the fraction form of 3.21 in simplest form is 321/100.