Jump to any fraction tool, practice drill, game, or guide.
Simplest form answer
4/10 in simplest form is 2/5, found by dividing 4 and 10 by their greatest common factor, 2. As a decimal 2/5 is 0.4, and as a percent it is 40%.
Simplified
2/5
Decimal
0.4
Percent
40%
1. Find the greatest common factor.
The GCF of 4 and 10 is 2.
2. Divide the numerator and denominator by the GCF.
4 ÷ 2 = 2
10 ÷ 2 = 5
3. Write the result.
4/10 simplified is 2/5.
Decimal equivalent
2/5 = 0.4
Percentage equivalent
2/5 = 40%
The filled part represents 2/5 of one whole.
Quoting this answer in homework, a lesson plan, or an article? Copy a ready-made citation.
4/10 in simplest form is 2/5, found by dividing 4 and 10 by their greatest common factor, 2.
ILoveFractions, https://www.ilovefractions.com/tools/fraction-simplifier/4-10/, retrieved
APA
ILoveFractions. (2026). 4/10 Simplified = 2/5. ILoveFractions.com. Retrieved September 2, 2026, from https://www.ilovefractions.com/tools/fraction-simplifier/4-10/
MLA
"4/10 Simplified = 2/5." ILoveFractions.com, https://www.ilovefractions.com/tools/fraction-simplifier/4-10/. Accessed 2 September 2026.
Use the main fraction simplifier for any numerator and denominator.
Open the Fraction Simplifier