mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="12px"><mrow><mn>3</mn><mo>+</mo><mfrac><mn>1</mn><msqrt><mn>3</mn></msqrt></mfrac><mo>+</mo><mfenced separators="|"><mrow><mfrac><mn>1</mn><mrow><mn>3</mn><mi mathvariant="normal"></mi><mo>+</mo><mi mathvariant="normal"></mi><msqrt><mn>3</mn></msqrt></mrow></mfrac><mo>+</mo><mfrac><mn>1</mn><mrow><mn>3</mn><mi mathvariant="normal"></mi><mo>-</mo><mi mathvariant="normal"></mi><msqrt><mn>3</mn></msqrt></mrow></mfrac></mrow></mfenced><mspace linebreak="newline"/><mo>=</mo><mn>3</mn><mo>+</mo><mfrac><mn>1</mn><msqrt><mn>3</mn></msqrt></mfrac><mo>+</mo><mfenced separators="|"><mfrac><mrow><mn>3</mn><mo>-</mo><msqrt><mn>3</mn></msqrt><mo>-</mo><mn>3</mn><mo>-</mo><msqrt><mn>3</mn></msqrt></mrow><mrow><mo>(</mo><mn>3</mn><mo>+</mo><msqrt><mn>3</mn></msqrt><mo>)</mo><mo>(</mo><mn>3</mn><mo>-</mo><msqrt><mn>3</mn></msqrt><mo>)</mo></mrow></mfrac></mfenced><mspace linebreak="newline"/><mn>3</mn><mo>+</mo><mfrac><mn>1</mn><msqrt><mn>3</mn></msqrt></mfrac><mo>+</mo><mfrac><mrow><mo>-</mo><mn>2</mn><msqrt><mn>3</mn></msqrt></mrow><mrow><mn>9</mn><mo>-</mo><mn>3</mn></mrow></mfrac><mo>=</mo><mn>3</mn><mo>+</mo><mfrac><mn>1</mn><msqrt><mn>3</mn></msqrt></mfrac><mo>-</mo><mfrac><msqrt><mn>3</mn></msqrt><mn>3</mn></mfrac><mo>=</mo><mn>3</mn><mo>+</mo><mfrac><mn>1</mn><msqrt><mn>3</mn></msqrt></mfrac><mo>-</mo><mfrac><mn>1</mn><msqrt><mn>3</mn></msqrt></mfrac><mo>=</mo><mn>3</mn></mrow></mstyle></math>