Question

meena distributed 4/5th of the chocolates she brought on her birthday to the class. what is percentage of the chocolates has she distributed?

Answer 1

meena distributed 4/5th of the chocolates she brought on her birthday to the class so she has distributed 80%

Answer 2

By distributing 4/5ths of the chocolates, she distributed 80% of the total chocolates she has brought.

This is because, to calculate percent, which basically means 'by hundred'
$\frac{}{100}$
You have to make the denominator 100, so
$\frac{4}{5} \times \frac{20}{20} = \frac{80}{100}$
or 80%