<<< native [ EFraction NormalFrac (EGrouped [ EIdentifier "x" , ESpace (7 % 20) , EIdentifier "y" ]) (ENumber "2") , ESymbol Bin "+" , EFraction NormalFrac (ENumber "2") (EGrouped [ EIdentifier "x" , ESpace (0 % 1) , EIdentifier "y" ]) , ESymbol Bin "+" , EFraction NormalFrac (EGrouped [ EIdentifier "x" , ESpace (0 % 1) , EIdentifier "y" ]) (ENumber "2") ] >>> mml

\frac{x y}{2} + \frac{2}{x y} + \frac{x y}{2}