mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="12px"><mrow><mo>=</mo><mfenced open="{" close="}" separators="|"><mrow><mn>105</mn><mi mathvariant="normal">x</mi><mo>&#xD7;</mo><mn>4</mn><mo>+</mo><mfenced separators="|"><mrow><mn>150</mn><mi mathvariant="normal">x</mi><mo>&#xD7;</mo><mfrac><mn>150</mn><mn>100</mn></mfrac></mrow></mfenced><mo>&#xD7;</mo><mn>8</mn></mrow></mfenced><mo>:</mo><mfenced separators="|"><mrow><mn>40</mn><mi mathvariant="normal">x</mi><mo>&#xD7;</mo><mn>12</mn></mrow></mfenced><mo>:</mo><mfenced separators="|"><mrow><mn>36</mn><mi mathvariant="normal">x</mi><mo>&#xD7;</mo><mn>12</mn></mrow></mfenced></mrow></mstyle></math>