Simplify 4/40

4/40 simplified is 1/10, after dividing the top and bottom by 4.

Result

Answer

\frac{4}{40} = \textcolor{#0b5c56}{\frac{1}{10}}

4/40 simplifies to 1/10.

  • Greatest common factor: 4
  • Decimal: \displaystyle 0.1
  • Percent: 10%
4/401/10

Same amount, fewer parts

Step-by-step solution

The problem

\frac{4}{40}

  1. Find the greatest common factor. List the factors of each:
    Factors of 4: 1, 2, 4
    Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
    The greatest common factor (GCF) is 4.

    \text{GCF}(4, 40) = 4

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

    = \frac{4 \div 4}{40 \div 4} = \textcolor{#0b5c56}{\frac{1}{10}}

All the working together

\begin{aligned} &\frac{4}{40} \\[8pt] &= \frac{4 \div 4}{40 \div 4} && \textcolor{#5b6660}{\textsf{divide by 4}} \\[8pt] &= \textcolor{#0b5c56}{\frac{1}{10}}\end{aligned}

4/40 in other forms

Simplest form1/10
Greatest common factor4
Decimal0.1
Percent10%
Equal fractions2/20, 3/30, 5/50, 6/60

Fractions over 40 simplified

FractionSimplest formDecimal
1/40already simplest0.025
2/401/200.05
3/40already simplest0.075
4/401/100.1
5/401/80.125
6/403/200.15
7/40already simplest0.175
8/401/50.2
9/40already simplest0.225
10/401/40.25
11/40already simplest0.275
12/403/100.3
13/40already simplest0.325
14/407/200.35
15/403/80.375
16/402/50.4
17/40already simplest0.425
18/409/200.45
19/40already simplest0.475
20/401/20.5
21/40already simplest0.525
22/4011/200.55
23/40already simplest0.575
24/403/50.6
25/405/80.625
26/4013/200.65
27/40already simplest0.675
28/407/100.7
29/40already simplest0.725
30/403/40.75
31/40already simplest0.775
32/404/50.8
33/40already simplest0.825
34/4017/200.85
35/407/80.875
36/409/100.9
37/40already simplest0.925
38/4019/200.95
39/40already simplest0.975

Frequently asked questions

What is 4/40 in simplest form?

4/40 simplifies to 1/10. Divide the top and bottom by 4, their greatest common factor: 4 ÷ 4 = 1 and 40 ÷ 4 = 10.

What is the greatest common factor of 4 and 40?

The GCF of 4 and 40 is 4 – the biggest number that divides both with nothing left over.

Is 4/40 equal to 1/10?

Yes. Both are 0.1 (10%). 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.