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Recognised as Fraction

-9/40

  • Proper fraction
  • Already in lowest terms
  • -0.225

-9/40 is a proper fraction equal to -0.225, or -22.5%. It is already in its lowest terms. Its decimal expansion terminates.

Value

As a decimal-0.225
As a percentage-22.5%
Simplified-9/40
Reciprocal40/-9
Decimal expansionTerminatingthe denominator has only 2s and 5s as prime factors

Numerator & denominator

Numerator-9
Denominator40
Greatest common divisor1
Lowest common multiple360
Numerator is primeNo
Denominator is primeNo
CoprimeYesno shared factor above 1

Equivalent fractions

Arithmetic

Double-9/20
Half-9/80
Squared81/1600
Plus one31/40
Minus one-49/40
Square root0.474341649

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Every value on this page was computed from “-9 over 40” by Nerdulator’s maths engine. Nothing here was retrieved from a database of answers or written by a model.