Recognised as Fraction

21/8

21/8 is an improper fraction equal to 2.625, or 262.5%. It is already in its lowest terms. Its decimal expansion terminates.

Value

As a decimal2.625

As a percentage262.5%

Simplified21/8

As a mixed number2 5/8

Reciprocal8/21

Decimal expansionTerminatingthe denominator has only 2s and 5s as prime factors

Numerator21

Denominator8

Greatest common divisor1

Lowest common multiple168

Numerator is primeNo

Denominator is primeNo

CoprimeYesno shared factor above 1

Double21/4

Squared441/64

Plus one29/8

Minus one13/8

Square root1.6201851746≈

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