0.18 as a Fraction

0.18 as a fraction is 9/50 in simplest form, which is 18%.

Result

Answer

0.18 = \textcolor{#0b5c56}{\frac{9}{50}}

0.18 as a fraction is 9/50.

  • Percent: 18%
019/50

Step-by-step solution

The problem

0.18

  1. Write the digits over 100. 0.18 has 2 decimal places, so put the digits (without the point) over 1 followed by 2 zeros.

    = \textcolor{#0b5c56}{\frac{18}{100}}

  2. Simplify. Write both as prime factors:\begin{aligned} 18 &= 2 \times 3^{2} \\[6pt] 100 &= 2^{2} \times 5^{2} \end{aligned}The only factor they share is 2, so the greatest common factor (GCF) is 2. Divide the top and bottom by 2.

    = \frac{18 \div 2}{100 \div 2} = \textcolor{#0b5c56}{\frac{9}{50}}

All the working together

\begin{aligned} &0.18 \\[8pt] &= \frac{18}{100} && \textcolor{#5b6660}{\textsf{over 100}} \\[8pt] &= \frac{18 \div 2}{100 \div 2} && \textcolor{#5b6660}{\textsf{simplify}} \\[8pt] &= \textcolor{#0b5c56}{\frac{9}{50}}\end{aligned}

0.18 in other forms

Fraction (simplest form)9/50
Before simplifying18/100
Percent18%
The other way9/50 as a decimal

Nearby decimals as fractions

DecimalFractionPercent
0.1313/10013%
0.147/5014%
0.153/2015%
0.164/2516%
0.1717/10017%
0.189/5018%
0.1919/10019%
0.21/520%
0.2121/10021%
0.2211/5022%
0.2323/10023%

Frequently asked questions

What is 0.18 as a fraction?

0.18 as a fraction is 9/50. 0.18 has 2 decimal places, so write the digits over 100: 18/100. Divide the top and bottom by 2 (their greatest common factor) to get 9/50.

What is 0.18 as a percent?

0.18 is 18%: multiply by 100 (move the decimal point two places to the right).

Is 9/50 the simplest form?

Yes. 9 and 50 have no common factor other than 1, because the greatest common factor 2 was divided out of 18/100.

More decimals as fractions

Any other decimal, including longer repeating ones: use the Decimal to Fraction Calculator, or look it up on the printable fraction chart.