40/100 Simplified
The fraction 40/100 written in its simplest form.
40/100 in simplest form
2/5
= 0.4 as a decimal · 40% as a percentage
How it works
To reduce a fraction, divide the numerator and denominator by their greatest common factor (GCF).
- GCF of 40 and 100 = 20
- 40 ÷ 20 = 2
- 100 ÷ 20 = 5
So 40/100 = 2/5, which cannot be reduced further because 2 and 5 share no common factor other than 1.
Equivalent fractions
40/100 = 2/5 = 4/10 = 6/15 = 8/20 — all equal to 0.4.
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Frequently asked questions
What is 40/100 in simplest form?+
40/100 simplifies to 2/5. Both the numerator and denominator share a greatest common factor of 20, and dividing each by 20 gives 2/5.
How do you simplify 40/100?+
Find the greatest common factor (GCF) of 40 and 100, which is 20, then divide the top and bottom by it: 40 ÷ 20 = 2 and 100 ÷ 20 = 5, giving 2/5.