Mod[-(27/10), 23/5] == 19/10

Cell[BoxData[RowBox[List[RowBox[List["Mod", "[", RowBox[List[RowBox[List["-", FractionBox["27", "10"]]], ",", FractionBox["23", "5"]]], "]"]], "\[Equal]", FractionBox["19", "10"]]]]]

<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <semantics> <mrow> <mrow> <mo> - </mo> <mfrac> <mn> 27 </mn> <mn> 10 </mn> </mfrac> </mrow> <mo> &#8290; </mo> <mi> mod </mi> <mo> &#8290; </mo> <mfrac> <mn> 23 </mn> <mn> 5 </mn> </mfrac> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <rem /> <apply> <times /> <cn type='integer'> -1 </cn> <cn type='rational'> 27 <sep /> 10 </cn> </apply> <cn type='rational'> 23 <sep /> 5 </cn> </apply> </annotation-xml> </semantics> <mo> &#10869; </mo> <mfrac> <mn> 19 </mn> <mn> 10 </mn> </mfrac> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <eq /> <apply> <rem /> <apply> <times /> <cn type='integer'> -1 </cn> <cn type='rational'> 27 <sep /> 10 </cn> </apply> <cn type='rational'> 23 <sep /> 5 </cn> </apply> <cn type='rational'> 19 <sep /> 10 </cn> </apply> </annotation-xml> </semantics> </math>

Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Mod", "[", RowBox[List[RowBox[List["-", FractionBox["27", "10"]]], ",", FractionBox["23", "5"]]], "]"]], "]"]], "\[RuleDelayed]", FractionBox["19", "10"]]]]]

2001-10-29