5.525 = 5525/1000 = 221/40
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As a product of its prime factors: 5*5*13*17 = 5525
Make the decimal a fraction, which is usually one or two digits over 100. Decimal percentages will be expressed using larger denominators.One way of saying this is to write the numbers after the decimal, over 1 followed by as many 0's as there are numbers after the decimal.Examples:.5 = 5/10.28 = 28/100.402 = 402/1000.5525 = 5525/10000Reduce the fraction to its simplest form by dividing the numerator and denominator by the same number, which is the same as dividing by 1.Example:28/100 divided by 4/4 = 7/25 -- this is the simplest form402/1000 divided by 2/2 = 201/500 -- this is simplest form (201 = 67x3)5525/10000 divided by 25/25 = 221/400 -- this is simplest form (221 = 13x17)the numbers after the decimal over 1 followed by as many 0's as there are numbers after the decimal.1) You convert the decimal to a fraction.2) You simplify the fraction in the usual way.For step 1, count the number of decimal digits. Use a "1", followed by that many zeros, in the denominator. Write the decimal number WITHOUT a decimal point in the numerator. Here is an example: Convert 3.225 to a fraction. Three decimal digits; so the denominator is 1000 (three zeros); your fraction is 3225 / 1000.For step 2, the prime factors of the denominator can only be 2 and 5; for example, you don't need to check whether both numbers are multiples of 3, or of 7 - they won't.
Every fraction is an equivalent fraction: each fraction in decimal form has an equivalent rational fraction as well as an equivalent percentage fraction.
A fraction that has a different sign to the first fraction.
Divide the fraction by 100, and you will get the percentage of a fraction.