红宝石 |理性+方法
+是 Ruby 中的一个内置方法，通过在两个有理数之间执行加法来返回有理数。
Syntax: rat1 + rat2
Parameters: The function accepts no parameter
Return Value: It returns the rational number by performing addition between two rational numbers.
示例 1 ：
Ruby
# Ruby program for + method
# Initialize rational number
rat1 = Rational(-2, 9)
rat2 = Rational(9, -2)
# Prints the rational number
puts rat1 + rat2Ruby
# Ruby program for + method
# Initialize rational number
rat1 = Rational(-2, 9)
# Prints the rational number
puts rat1 + 2输出：
-85/18示例 2 ：
红宝石
# Ruby program for + method
# Initialize rational number
rat1 = Rational(-2, 9)
# Prints the rational number
puts rat1 + 2
输出：
16/9