12/72 as a percentage is 16.67%. This fraction simplifies to a small part of a whole, and the rounded percentage makes it easy to understand at a glance.
When you see 12 out of 72, think of it as 12 pieces in a group of 72 equal pieces. That same idea can be expressed as 16.67%, which tells you how many hundredths of the whole the fraction represents.
Both the fraction and the percentage are useful: the fraction is handy for exact calculations, while the percentage is great for quick comparisons, like seeing that 12 is roughly one‑sixth of 72.
