70/91 as a percentage is 76.92%. This fraction is a little more than three‑quarters, and the rounded percentage gives a quick way to see its size without doing the division each time.
The fraction 70/91 cannot be reduced any further, so it stays in its simplest form. When you think of it on a number line, it sits close to 0.8, which matches the 76.92% you see after converting.
In everyday situations, you might use this percentage to compare scores, measurements, or probabilities. Knowing that 70 out of 91 is about 77 % helps you estimate results quickly and communicate them clearly.