If you divide a fraction over a number, you can just muplitply the denominator (the number under the line) by the number by which you divide:
\(\frac{99}{100*21}\)
99 and 21 are divisible by 3, so we can divide them both by it:
\(\frac{33}{100*7}\)
but that's all we can do!
so let's multiply
\(\frac{33}{700}\)
and it's its simplest form
