4/10 Simplified

The fraction 4/10 written in its simplest form.

4/10 in simplest form
2/5
= 0.4 as a decimal · 40% as a percentage
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How it works

To reduce a fraction, divide the numerator and denominator by their greatest common factor (GCF).

  • GCF of 4 and 10 = 2
  • 4 ÷ 2 = 2
  • 10 ÷ 2 = 5

So 4/10 = 2/5, which cannot be reduced further because 2 and 5 share no common factor other than 1.

Equivalent fractions

4/10 = 2/5 = 4/10 = 6/15 = 8/20 — all equal to 0.4.

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Frequently asked questions

What is 4/10 in simplest form?+

4/10 simplifies to 2/5. Both the numerator and denominator share a greatest common factor of 2, and dividing each by 2 gives 2/5.

How do you simplify 4/10?+

Find the greatest common factor (GCF) of 4 and 10, which is 2, then divide the top and bottom by it: 4 ÷ 2 = 2 and 10 ÷ 2 = 5, giving 2/5.