The fractional section of a decimal number: the digits off to the right associated with decimal point.

an effective small fraction whoever denominator is a power of 10

adjective:

a fraction where the denominator is some power of 10, as 2/10, 25/100, and is usually not expressed, but is signified by a place put at left hand associated with numerator, as .2, .25.

## How would you define decimal fraction?