mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="12px"><mrow><mfenced separators="|"><mrow><mn>1</mn><mo>+</mo><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow></mfenced><mfenced separators="|"><mrow><mn>1</mn><mo>+</mo><mfrac><mn>1</mn><mn>3</mn></mfrac></mrow></mfenced><mfenced separators="|"><mrow><mn>1</mn><mo>+</mo><mfrac><mn>1</mn><mn>4</mn></mfrac></mrow></mfenced><mfenced separators="|"><mrow><mn>1</mn><mo>+</mo><mfrac><mn>1</mn><mn>5</mn></mfrac></mrow></mfenced></mrow></mstyle></math>