Simplify 20/36

20/36 simplified is 5/9, after dividing the top and bottom by 4.

Result

Answer

\frac{20}{36} = \textcolor{#0b5c56}{\frac{5}{9}}

20/36 simplifies to 5/9.

  • Greatest common factor: 4
  • Decimal: \displaystyle 0.\overline{5} (the 5 repeats forever, about 0.5556)
  • Percent: 55.56%
20/365/9

Same amount, fewer parts

Step-by-step solution

The problem

\frac{20}{36}

  1. Find the greatest common factor. List the factors of each:
    Factors of 20: 1, 2, 4, 5, 10, 20
    Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36
    The greatest common factor (GCF) is 4.

    \text{GCF}(20, 36) = 4

  2. Divide the top and bottom by 4. Dividing both by the same number keeps the value the same.

    = \frac{20 \div 4}{36 \div 4} = \textcolor{#0b5c56}{\frac{5}{9}}

All the working together

\begin{aligned} &\frac{20}{36} \\[8pt] &= \frac{20 \div 4}{36 \div 4} && \textcolor{#5b6660}{\textsf{divide by 4}} \\[8pt] &= \textcolor{#0b5c56}{\frac{5}{9}}\end{aligned}

20/36 in other forms

Simplest form5/9
Greatest common factor4
Decimal0.555… (the 5 repeats forever)
Percent≈ 55.56%
Equal fractions10/18, 15/27, 25/45, 30/54

Fractions over 36 simplified

FractionSimplest formDecimal
1/36already simplest0.02777…
2/361/180.0555…
3/361/120.08333…
4/361/90.111…
5/36already simplest0.13888…
6/361/60.1666…
7/36already simplest0.19444…
8/362/90.222…
9/361/40.25
10/365/180.2777…
11/36already simplest0.30555…
12/361/30.333…
13/36already simplest0.36111…
14/367/180.3888…
15/365/120.41666…
16/364/90.444…
17/36already simplest0.47222…
18/361/20.5
19/36already simplest0.52777…
20/365/90.555…
21/367/120.58333…
22/3611/180.6111…
23/36already simplest0.63888…
24/362/30.666…
25/36already simplest0.69444…
26/3613/180.7222…
27/363/40.75
28/367/90.777…
29/36already simplest0.80555…
30/365/60.8333…
31/36already simplest0.86111…
32/368/90.888…
33/3611/120.91666…
34/3617/180.9444…
35/36already simplest0.97222…

Frequently asked questions

What is 20/36 in simplest form?

20/36 simplifies to 5/9. Divide the top and bottom by 4, their greatest common factor: 20 ÷ 4 = 5 and 36 ÷ 4 = 9.

What is the greatest common factor of 20 and 36?

The GCF of 20 and 36 is 4 – the biggest number that divides both with nothing left over.

Is 20/36 equal to 5/9?

Yes. Both are 0.555… (≈ 55.56%). 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.