21/40 expressed as a percentage is 52.50%. This value tells you that the fraction is just a little more than half of a whole.
The fraction 21/40 can be thought of as 21 equal parts out of 40 total parts. When you look at it in everyday terms, it means you have a little more than five out of ten pieces, which matches the percentage we gave.
Knowing the percentage makes it easier to compare with other numbers, especially when dealing with grades, discounts, or statistics. It gives a quick sense of size without having to work with the fraction directly.
