fraction
n. countablen. a small part or amount of something. In math, it is a number that represents a part of a whole, like 1/2 or 3/4.
n. a numerical representation of a portion of a whole, or more broadly, a small or tiny proportion of a larger amount. In chemistry and physics, it refers to a component of a mixture separated by a process like distillation.
Only a small fraction of the students failed the test.
The company managed to reduce its energy costs by a significant fraction after installing solar panels.
During the refining process, crude oil is separated into different fractions based on their boiling points, allowing for the production of gasoline, kerosene, and diesel.
Often used with the preposition 'of' to indicate the whole from which the part is taken.