Ruby | Rational – method

The – is an inbuilt method in Ruby returns the rational number by performing subtraction between two rational numbers.

Syntax: rat1 – rat2

Parameters: The function accepts no parameter

Return Value: It returns the rational number by performing subtraction between two rational numbers. 

Example 1:  

Ruby

# Ruby program for - method

# Initialize rational number
rat1 = Rational(-2, 9)
rat2 = Rational(9, -2)

# Prints the rational number
puts rat1 - rat2

Output: 

77/18

Example 2: 

Ruby

# Ruby program for - method

# Initialize rational number
rat1 = Rational(-2, 9)

# Prints the rational number
puts rat1 - 2

Output: 

-20/9

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