Using Ruby Programming

Question

Design a class Rational for fractions (n, d), d > 0 where both are relatively prime integers with gcd(n, d) = 1. Again provide constructors, accessors, mutators, to string, to double, etc. as well as methods for plus, minus, times and divide. Note that constructing a point here requires that d be non-zero so need to handle exceptions. Also to normalize n and d so that gcd = 1. Again your methods should support queries about operations on fractions, arrays of fractions - find the sum of an array, etc.

Answer 1

Here's to start you off...

 

class Rational

  attr_accessor :n, :d

 

  def initialize(n, d)

    @numerator = n

    @denominator = d

  end

 

  def *(right_hand_side)

  end

 

  def to_s

  end

end

 

It is up to you to define those methods and add more methods as needed. Also don't forget about including parameters for each method when appropriate.

 

The method initialize is called once every time you create a new instance of the class (i.e. a new object).

 

Variables that start with an @ sign are instance variables and are accessible from any instance method.