write a Fraction class called Fraction.java that implements these methods:
add - This method receives a Fraction parameter and adds the parameter fraction to the calling object fraction.
multiply - This method receives a Fraction parameter and multiplies the parameter fraction by the calling object fraction.
print - This method prints the fraction using fraction notation (1/4, 21/14, etc.)
printAsDouble - This method prints the fraction as a double (0.25, 1.5, etc.)
Separate accessor methods for each instance variable in the Fraction
