<<< mml <?xml version="1.0" encoding="UTF-8"?> <math xmlns="http://www.w3.org/1998/Math/MathML"> <mrow> <mo>(</mo> <mfrac linethickness="0"> <mi>a</mi> <mi>b</mi> </mfrac> <mo>)</mo> </mrow> </math> >>> native [ EDelimited "(" ")" [ Right (EFraction NormalFrac (EIdentifier "a") (EIdentifier "b")) ] ]