Update some files

[itsubaki]

No description provided.

[codecov]

Codecov Report

Merging #16 (3c103ef) into main (0fb166e) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #16      +/-   ##
==========================================
- Coverage   98.67%   98.66%   -0.01%     
==========================================
  Files          16       16              
  Lines        1354     1353       -1     
==========================================
- Hits         1336     1335       -1     
  Misses         10       10              
  Partials        8        8              

Impacted Files	Coverage Δ
pkg/math/number/fraction.go	100.00% <100.00%> (ø)

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