0.9 as a Fraction
To convert 0.9 to a fraction you need to multiply 0.9/1 by 10/10 and you’ll get 9/10. Which is the final result, since this fraction cannot be reduced.

What Is 0.9 as a Fraction?
0.9 as a fraction in simplest form is 9/10. You can verify this answer by using a calculator to divide 9 by 10 and the result should be 0.9.
How to Convert 0.9 to a Fraction
Here are the steps to convert a decimal to a fraction, more specifically how to get .9 as a simplified fraction:
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Rewrite 0.9 as a fraction dividing it by 1.
0.9 1
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Multiply the numerator and denominator by 10. Because 0.9 has one digit after the decimal point, you need to multiply by 101=10 to get rid of the decimal places.
0.9 1×10 10=9 10
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Since the resulting fraction cannot be reduced any further, 0.9 as a fraction in simplest form is:
9 10