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Decimal (Noun)

A proper fraction whose denominator is a power of 10.

Nouns denoting quantities and units of measure.

The decimal 0.5 represents the fraction three-fifths when expressed with a denominator of ten.
Expressing three-eighths as a decimal yields 0.375, where the denominator 8 is converted to a power of 10.
We can convert any proper fraction to its decimal equivalent by changing the denominator to a power of 10.
She rewrote all her fractions as decimals, using powers of 10 for denominators to simplify her math homework.
His teacher required that he write all his fractions with decimal equivalents when the denominator was not a power of 10.

A number in the decimal system.

Nouns denoting quantities and units of measure.