ElBi21
diff --git a/‎main.pdf
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diff --git a/‎notex.cls
+1 b/‎notex.cls
+1
@@ -42,6 +42,7 @@
 
 \RequirePackage{graphicx}
 \RequirePackage{multirow}
+\RequirePackage{nicefrac}
 
 \tcbuselibrary{most}                    % Loads tcolorbox options
 \DeclareMathAlphabet{\mathcal}{OMS}{zplm}{m}{n}