xxx is an integer and not a fraction. However, it can be expressed in rational form as 29/1. You can then calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.
The fraction 3 and 2/10
It is: 5.125 = 41/8 as a fraction in its lowest terms
35/10 is an equivalent fraction.
Multiply (or divide) the numerator and the denominator both by the same number.
It is: 6/12 = 1/2 in its lowest terms
It is: 9/24 = 3/8 in its lowest terms
Multiply both the numerator and the denominator of the fraction you already have by the same number, and you'll get another fraction that's equivalent to it.
It is: 0.29 = 29/100 as a fraction
00029 = 29 which, as a fraction, is 29/1
29 percent as a fraction in simplest form is 29/100.
.29 = 29/100
-29 is an integer and there is no sensible way to express it as a fraction.