fraction slash vs inclination

fraction slash

noun
  • The slash variant ⟨⁄⟩ used for expressing fractions. 

inclination

noun
  • A slant or slope. 

  • A tendency. 

  • The angle of intersection of a reference plane 

  • A physical tilt or bend. 

How often have the words fraction slash and inclination occurred in a corpus of books? (source: Google Ngram Viewer )