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Fraction

4/10

  • Proper fraction
  • Simplifies to 2/5
  • 0.4

4/10 is a proper fraction equal to 0.4, or 40%. In lowest terms it is 2/5. Its decimal expansion terminates.

Value

As a decimal0.4
As a percentage40%
Simplified2/5
Reciprocal10/4
Decimal expansionTerminatingthe denominator has only 2s and 5s as prime factors

Numerator & denominator

Numerator4
Denominator10
Greatest common divisor2
Lowest common multiple20
Numerator is primeNo
Denominator is primeNo
CoprimeNono shared factor above 1

Equivalent fractions

× 24/10
× 36/15
× 48/20
× 510/25
× 612/30
× 1020/50

Arithmetic

Double4/5
Half2/10
Squared4/25
Plus one7/5
Minus one-3/5
Square root0.632455532≈

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Every value on this page was computed from “4 over 10” by Nerdulator’s maths engine. Nothing here was retrieved from a database of answers or written by a model.