How do you write 0.4% as a fraction?

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Answer 1 · 2017-02-13T23:04:30

"Percent" or "%" means "out of 100" or "per 100", Therefore 0.4% can be written as:

$0.4/100$

Or, if we multiply by the numerator and denominator by $10/10$ which is the same as multiplying by $1$ we obtain:

$0.4/100 xx 10/10 = 4/1000$

Or, we can factor to get:

$4/1000 = (2 xx 2)/(2 xx 2 xx 250) = cancel(2 xx 2)/(cancel(2 xx 2) xx 250) = 1/250$

The solution is: $0.4/100$ or $4/1000$ or $1/250$