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0.2 as a fraction

0.2 = 1/5.

Checked by test against every decimal in this family · How we check

How it gets there

  1. Put the digits over their place value. 0.2 has 1 decimal place, so it is 2/10.
  2. Divide both by their greatest common divisor, 2: 2 ÷ 2 = 1 and 10 ÷ 2 = 5. That gives 1/5.

Questions people actually ask

What is half of 0.2?
1/10, or 0.1 as a decimal. Halving a fraction doubles the denominator rather than halving the top, unless the numerator is even and cancels. Doubled instead, 1/5 is 2/5 or 0.4.
What is 0.2 as a fraction?
1/5, in lowest terms. 2/10 is the same value before reducing, and dividing both by 2 gets there.
How do you convert 0.2 to a fraction step by step?
Put the digits over their place value — 0.2 has 1 decimal place, so it is 2/10 — then divide both by their greatest common divisor, 2. That gives 1/5 and it cannot reduce further.
Is 1/5 in simplest form?
Yes. The numerator and denominator share no factor above 1, which is what simplest form means. 2/10 is the same number written before that reduction.
What is 0.2 on a tape measure?
It falls between marks. The nearest sixteenth is 3/16, which is off by about 0.32 mm on an inch — close enough for carpentry and not for machining.
What is 1/5 as a decimal?
0.2. This page runs the conversion in the direction people ask for it, and dividing 1 by 5 runs it back the other way.

The same number, other ways

Fraction, lowest terms
1/5
Before reducing
2/10
As a percentage
20%
As a ratio
1:5
Equivalent fractions
2/10, 3/15, 4/20, 5/25
Nearest sixteenth on a tape
3/16 (nearest)

A tape measure only has sixteenths, so 0.2 does not land on a mark. The nearest one is 3/16, which is 0.200 of a sixteenth away — about 0.32 mm on an inch.

Work it out for any decimal

The two calculators this page is built from take any numbers you like: reduce a fraction shows the divisor it used, and fraction to decimal goes the other way, to the nearest 16th, 32nd and 64th.

Decimals either side

0.15 = 3/200.16 = 4/250.17 = 17/1000.18 = 9/500.19 = 19/1000.20 = 1/5

Cite this page

APA
Rule Calculator. (2026). 0.2 as a fraction. Rule Calculator. https://rulecalculators.com/fraction/0-2-as-a-fraction
MLA
"0.2 as a fraction." Rule Calculator, October 1, 2026, https://rulecalculators.com/fraction/0-2-as-a-fraction.
Chicago
Rule Calculator. "0.2 as a fraction." Rule Calculator. Last reviewed October 1, 2026. https://rulecalculators.com/fraction/0-2-as-a-fraction.

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