20/70 as a percentage is 28.57%. This is the simple way to show how the fraction relates to a whole.
The fraction 20/70 can be reduced to 2/7, but the percentage stays the same. It tells you that the part is just under a third of the whole.
When you see 28.57% on a chart or in a report, you know it represents the same amount as 20 out of 70 items. It’s a quick way to compare sizes without using fractions.
