Math Tool Fraction Calculator

This is an advertisement supported math tool. It allows you to do some simple arithematics involves fraction. It is kept to be simple and straight forward that can satisfy most of your daily arithematics and young students' homework.
You can also use it as fraction reducer by entering the non-reduced fraction and press '='. Since it provides multiple result formats, you can use it as a conversion tool between decimal and fraction too.
Features:
* mixing calculation with decimal numbers and fractions (proper, inproper, mixed)
* work with negative numbers
* available operations: add, subtract, multiply, divide, setting precedence with parenthesis
* show result in different format: decimal and fraction (duplicate will be eliminated)
* setting resolution for decimal and fraction
Fraction denominator:
While forcing the fraction denominator to a certain number, it can be used to perform some special purpose calculation. For example, for calculating length addition in feet and inches, set the denominator to 12. For adding hours and minutes, set it to 60. Also note that since the denominator is rounded to the nearest integer according to the specified denominator, the displayed result may not be the exact answer. In order to obtain the exact answer, clear the fraction denominator on setting page.