Set up equivalent fractions as.....
1 x
-- = -----
2 100
Now apply cross-multiplication, solve for "x".....
2x=100
∴ x=50.........divide both sides by 2
So the numerator (of the fraction with denominator 100) is 50.
1/2=0.5....in decimal form
50/100=0.5....in decimal form
Both fractions are equivalent because both decimal values are
the same. Therefore, both fractions are the same.