Steps to convert 12.85 into a fraction.Write 12.85 as
Multiply both the numerator and denominator by 10 for each digit after the decimal point.
In order to reduce the fraction find the Greatest Common Factor (GCF) for 1285 and 100. Keep in mind a factor is just a number that divides into another number without any remainder.
Now to reduce the fraction we divide both the numerator and denominator by the GCF value.
Scroll down to customize the precision point enabling 12.85 to be broken down to a specific number of digits.
The page also includes 2-3D graphical representations of 12.85 as a fraction, the different types of fractions, and what type of fraction 12.85 is when converted.
Pie chart representation of the fractional part of 12.85
The level of precision are the number of digits to round to. Select a lower precision point below to break decimal 12.85 down further in fraction form. The default precision point is 5. If the last trailing digit is "5" you can use the "round half up" and "round half down" options to round that digit up or down when you change the precision point.
For example 0.875 with a precision point of 2 rounded half up = 88/100, rounded half down = 87/100.
12.85 = 12 85/100
numerator/denominator = 85/100
A mixed number is made up of a whole number (whole numbers have no fractional or decimal part) and a proper fraction part (a fraction where the numerator (the top number) is less than the denominator (the bottom number). In this case the whole number value is 12 and the proper fraction value is 85/100.
Not all decimals can be converted into a fraction. There are 3 basic types which include:
Terminating decimals have a limited number of digits after the decimal point.
Example: 9231.6729 = 9231 6729/10000
Recurring decimals have one or more repeating numbers after the decimal point which continue on infinitely.
Example: 6694.3333 = 6694 3333/10000 = 333/1000 = 33/100 = 1/3 (rounded)
Irrational decimals go on forever and never form a repeating pattern. This type of decimal cannot be expressed as a fraction.
You can also see the reverse conversion I.e. how fraction 12 85/100 is converted into a decimal.
Click any decimal to see it as a fraction:
Click any decimal to see the converted fraction value:
Click a decimal to convert into a fraction: