Fraction

2/5

2/5 is a proper fraction equal to 0.4, or 40%. It is already in its lowest terms. Its decimal expansion terminates.

Value

As a decimal0.4

As a percentage40%

Simplified2/5

Reciprocal5/2

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

Numerator2

Denominator5

Greatest common divisor1

Lowest common multiple10

Numerator is primeYes

Denominator is primeYes

CoprimeYesno shared factor above 1

Double4/5

Squared4/25

Plus one7/5

Minus one-3/5

Square root0.632455532≈

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