Can I replace (Date.current - created_at.to_date).to_i <= number_of_days with number_of_days.days.ago.to_date? Is it a good idea?

In my models/book.rb I have this

  def created_since?(number_of_days)
    (Date.current - created_at.to_date).to_i <= number_of_days
  end

That is used in view files like

<% if @book.created_since?(30) %>

Can I optimize it editing with something like this?

  def created_since?(number_of_days)
    number_of_days.days.ago.to_date
  end

Is it a good idea? will it work the same?