Question

Reduce the fraction 20/100

Answer 1

1/5

Answer 2

\[
\frac{20}{100}=\frac{2*2*5}{2*2*5*5}=\frac15
\]

Answer 3

or divde both by twenty because 100 is divisible by 20 :) and you get the same thing.
20 goes into 20 1 time
100 goes into 20 5 times.
therefore it equals 1/5 :)