decimal fraction
nounUK /ˈdesɪməl ˈfrækʃən/
US /ˈdesɪməl ˈfrækʃən/
A decimal fraction is a fraction written with a dot, like 0.5 or 0.25.
One half can be written as the decimal fraction 0.5.
RELATED WORDS
OTHER MEANINGS
2. A fraction whose denominator is a power of ten, often written using decimal notation.
The fraction 3/100 is a decimal fraction equal to 0.03.
3. A number expressed in the base-10 system with digits after the decimal point.
In math class we learned to add decimal fractions like 1.25 and 2.75.
4. Any numeral that uses a decimal point to show parts smaller than one.
The price 4.99 is a decimal fraction of a dollar.