The fraction 21/42 equals 50.00% when expressed as a percentage. This simple relationship shows that the two numbers split the whole right in half.
When you reduce 21/42, you get 1/2, which is the same as saying one out of two equal parts. That’s why the percentage lands exactly at fifty percent—half of any whole is always fifty percent.
Knowing this conversion is handy in everyday situations, like figuring out discounts or comparing scores. It’s a quick way to see that 21 out of 42 items represent half of the total.
