print "Enter a number: "
first_num = gets.to_i
print "Enter Another Number: "
second_num = gets.to_i
begin
 answer = (first_num / second_num).to_f
rescue
 puts "You can't devide by zero."
 exit
end
puts "#{first_num} / #{second_num} = #{answer}"
age = -1
def check_age(age)
 raise ArgumentError, "Enter Positive Number" unless age > 0
end
begin
 check_age(age)
rescue ArgumentError
 puts "That is impossible age"
end