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.
No, it is already a fraction in its lowest terms.
0.642 as a fraction in its lowest terms is 321/500
It means to reduce fractions to their lowest terms as for example 4/8 = 1/2 in its lowest terms
Yes, they can.
Yes, that is a good thing to do.
18 over 125 is already a fraction in lowest terms.
That is the lowest. You can't reduce 11/8.
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