Yes, that is a good thing to do.
It is not possible to reduce a percent to it's lowest terms. It is possible to reduce a fraction to it's lowest terms, however.
0.642 as a fraction in its lowest terms is 321/500
No, it is already a fraction in its lowest terms.
7
Reduce means 'cancel down'. e.g. 4/100 can be reduced. Both '4' and '100;' have factors of '4' So divide both numbers by '4' Hence 4/100 = 1/25 (The reduced / simplest form).
18 over 125 is already a fraction in lowest terms.
The fraction is not reduced to lowest terms. We can reduce this fraction to lowest terms by dividing both the numerator and denominator by 4, because 4 is the Greatest Common Divisor of the numbers 52 and 64. So, this fraction reduced to lowest terms is 13/16
1x2x
That is the lowest. You can't reduce 11/8.
3/2
4/5
5/4