4/5 as a Decimal
The fraction 4/5 written as a decimal.
4/5 as a decimal
0.8
= 80% · terminating decimal
How it works
To turn a fraction into a decimal, divide the numerator by the denominator: 4 ÷ 5 = 0.8.
Because 5's only prime factors are 2 and 5, the division ends cleanly, so 4/5 is a terminating decimal.
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The fraction calculator adds, subtracts, multiplies, divides and simplifies any fractions, and shows each result as a decimal too.
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Frequently asked questions
What is 4/5 as a decimal?+
4/5 as a decimal is 0.8. It is a terminating decimal, found by dividing 4 by 5.
How do you turn 4/5 into a decimal?+
Divide the numerator by the denominator: 4 ÷ 5 = 0.8. A fraction gives a terminating decimal when the denominator's only prime factors are 2 and 5, and a repeating decimal otherwise.