Ruby. Random numbers generator

I'm new to Ruby. I just want to know if there is a way to create random numbers in the following fashion:

1) Generate 45 random numbers.

2) Random number generated can be repeated only up to 5 times

I tried using the following approach.

45.times do |x|
  puts x.rand(1..9)
end 

How can I achieve max occurrence of a number be 5?