70/84 as a percentage is 83.33%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
If you simplify the fraction first, 70/84 reduces to 5/6. Both fractions give the same result, which is the 83.33% we just mentioned.
Seeing a value of 83.33% can be useful in everyday situations. For example, if you scored 70 points out of a possible 84 on a test, you actually earned about eighty‑three percent of the total points.
Remember, 83.33% is just another way to write the same size as the fraction 70/84, and it works the same in any context where percentages are used.