The fraction 4/10 is equal to 40.00% when expressed as a percentage. This common fraction represents four parts out of a total of ten parts, which is a useful way to think about percentages. It's often encountered in everyday situations, like describing test scores or sales discounts.
When we see 4/10 or 40%, we know it's less than half but more than a third of something. This fraction and its percentage equivalent are handy for quick mental math. For instance, if you need to calculate 40% of a number, you can simply multiply it by 4/10, which is often easier to do in your head than using the decimal 0.4.
