21/34 as a percentage is 61.76%. This value tells you that the fraction is a little over three‑fifths when you look at it on a 100‑point scale.
The fraction 21/34 can also be seen as a decimal, roughly 0.6176, which matches the percentage when you multiply by 100. It sits between 1/2 (50%) and 2/3 (66.7%), making it a useful reference point when comparing sizes or probabilities.
In everyday situations, you might encounter this proportion when dividing a group of 34 items and giving 21 of them to one side. Knowing that it equals 61.76% helps you quickly estimate shares, budget portions, or assess odds without doing long calculations.