mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo><mi mathvariant="normal">r</mi><mfenced separators="|"><mrow><mfrac><mn>22</mn><mn>7</mn></mfrac><mo>+</mo><mn>2</mn></mrow></mfenced><mo>=</mo><mn>36</mn><mspace linebreak="newline"/><mo>⇒</mo><mi mathvariant="normal">r</mi><mo>×</mo><mfrac><mn>36</mn><mn>7</mn></mfrac><mo>=</mo><mn>36</mn></math>