Answer
$\frac{2}{1}$
Work Step by Step
$ 100 to $ 50
$\frac{$100}{$50}$
now as both numerator and denominator has same unit it can be divided out.
$\frac{100}{50}$
Now divide both numerator and denominator by 50.
$\frac{100 ÷50}{50 ÷50}$
it can be written as a fraction in the lowest term as $\frac{2}{1}$