10/18 Simplified

The fraction 10/18 written in its simplest form.

10/18 in simplest form
5/9
= 0.555556 as a decimal · 55.5556% 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 10 and 18 = 2
  • 10 ÷ 2 = 5
  • 18 ÷ 2 = 9

So 10/18 = 5/9, which cannot be reduced further because 5 and 9 share no common factor other than 1.

Equivalent fractions

10/18 = 5/9 = 10/18 = 15/27 = 20/36 — all equal to 0.555556.

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Frequently asked questions

What is 10/18 in simplest form?+

10/18 simplifies to 5/9. Both the numerator and denominator share a greatest common factor of 2, and dividing each by 2 gives 5/9.

How do you simplify 10/18?+

Find the greatest common factor (GCF) of 10 and 18, which is 2, then divide the top and bottom by it: 10 ÷ 2 = 5 and 18 ÷ 2 = 9, giving 5/9.