Issue #12980 has been updated by Akira Tanaka.


It is because ruby-dev:38446 by mame-san.

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/38446

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Bug #12980: Time - Time to return a Rational
https://bugs.ruby-lang.org/issues/12980#change-61710

* Author: Akira Matsuda
* Status: Open
* Priority: Normal
* Assignee: Akira Tanaka
* ruby -v: ruby 2.4.0dev (2016-11-25 trunk 56897) [x86_64-darwin15]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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Currently subtracting a Time from a Time returns a Float, which I guess causes #12952

Is there any reason this doesn't return a Rational?



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