**63/78 as a percentage is 80.77%. This fraction can be reduced to 21/26, but the decimal form still comes out to the same value when turned into a percentage.
When you see 80.77%, think of it as a little less than four‑fifths of a whole. It’s a handy number for quick estimates in everyday situations, like comparing scores or calculating simple discounts.
Remember that the 80.77% figure is rounded to two decimal places, so the exact value is a tiny bit different, but for most practical purposes the rounded number works just fine.