4.57 as a Fraction
To convert 4.57 to a fraction you need to multiply 4.57/1 by 100/100 and you’ll get 457/100. Which is the final result, since this fraction cannot be reduced. Since this is an improper fraction you can also write it as a mixed number 4 57/100.

What Is 4.57 as a Fraction?
4.57 as a fraction in simplest form is 457/100. You can verify this answer by using a calculator to divide 457 by 100 and the result should be 4.57.
How to Convert 4.57 to a Fraction
Here are the steps to convert a decimal to a fraction, more specifically how to get 4.57 as a simplified fraction:
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Rewrite 4.57 as a fraction dividing it by 1.
4.57 1
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Multiply the numerator and denominator by 100. Because 4.57 has two digit after the decimal point, you need to multiply by 102=100 to get rid of the decimal places.
4.57 1×100 100=457 100
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Considering that the resulting fraction cannot be reduced any further, 4.57 as a fraction in simplest form is:
457 100
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Since the numerator is greater than the denominator, we are dealing with an improper fraction. This means we can also express 457/100 as a mixed number:
457 100