Simplify 3/18

3/18 simplified is 1/6, after dividing the top and bottom by 3.

Result

Answer

\frac{3}{18} = \textcolor{#0b5c56}{\frac{1}{6}}

3/18 simplifies to 1/6.

  • Greatest common factor: 3
  • Decimal: \displaystyle 0.1\overline{6} (the 6 repeats forever, about 0.1667)
  • Percent: 16.67%
3/181/6

Same amount, fewer parts

Step-by-step solution

The problem

\frac{3}{18}

  1. Find the greatest common factor. List the factors of each:
    Factors of 3: 1, 3
    Factors of 18: 1, 2, 3, 6, 9, 18
    The greatest common factor (GCF) is 3.

    \text{GCF}(3, 18) = 3

  2. Divide the top and bottom by 3. Dividing both by the same number keeps the value the same.

    = \frac{3 \div 3}{18 \div 3} = \textcolor{#0b5c56}{\frac{1}{6}}

All the working together

\begin{aligned} &\frac{3}{18} \\[8pt] &= \frac{3 \div 3}{18 \div 3} && \textcolor{#5b6660}{\textsf{divide by 3}} \\[8pt] &= \textcolor{#0b5c56}{\frac{1}{6}}\end{aligned}

3/18 in other forms

Simplest form1/6
Greatest common factor3
Decimal0.1666… (the 6 repeats forever)
Percent≈ 16.67%
Equal fractions2/12, 4/24, 5/30, 6/36

Fractions over 18 simplified

FractionSimplest formDecimal
1/18already simplest0.0555…
2/181/90.111…
3/181/60.1666…
4/182/90.222…
5/18already simplest0.2777…
6/181/30.333…
7/18already simplest0.3888…
8/184/90.444…
9/181/20.5
10/185/90.555…
11/18already simplest0.6111…
12/182/30.666…
13/18already simplest0.7222…
14/187/90.777…
15/185/60.8333…
16/188/90.888…
17/18already simplest0.9444…

Frequently asked questions

What is 3/18 in simplest form?

3/18 simplifies to 1/6. Divide the top and bottom by 3, their greatest common factor: 3 ÷ 3 = 1 and 18 ÷ 3 = 6.

What is the greatest common factor of 3 and 18?

The GCF of 3 and 18 is 3 – the biggest number that divides both with nothing left over.

Is 3/18 equal to 1/6?

Yes. Both are 0.1666… (≈ 16.67%). Simplifying changes how the fraction is written, not its value.

More fractions to simplify

Any other fraction or mixed number: use the Simplify Fractions Calculator.