<svg xmlns="http://www.w3.org/2000/svg" xmlns:wrs="http://www.wiris.com/xml/mathml-extension" height="88" width="146" wrs:baseline="43"><!--MathML: <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>253</mn><mo>-</mo><mn>273</mn></mrow><mn>5</mn></mfrac><mo>=</mo><mfrac><mrow><mi mathvariant="normal">F</mi><mo>-</mo><mn>32</mn></mrow><mn>9</mn></mfrac><mspace linebreak="newline"/><mfrac><mrow><mo>-</mo><mn>20</mn></mrow><mn>5</mn></mfrac><mo>=</mo><mfrac><mrow><mi mathvariant="normal">F</mi><mo>-</mo><mn>32</mn></mrow><mn>9</mn></mfrac></math>--><defs><style type="text/css">@font-face{font-family:'math135b31cfba37a56451b4768509d';src:url(data:font/truetype;charset=utf-8;base64,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)format('truetype');font-weight:normal;font-style:normal;}</style></defs><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="2.5" x2="74.5" y1="21.5" y2="21.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="17.5" y="16">253</text><text font-family="math135b31cfba37a56451b4768509d" font-size="16" text-anchor="middle" x="38.5" y="16">&#x2212;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="59.5" y="16">273</text><text font-family="Arial" font-size="16" text-anchor="middle" x="38.5" y="38">5</text><text font-family="math135b31cfba37a56451b4768509d" font-size="16" text-anchor="middle" x="85.5" y="27">=</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="96.5" x2="142.5" y1="21.5" y2="21.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="103.5" y="16">F</text><text font-family="math135b31cfba37a56451b4768509d" font-size="16" text-anchor="middle" x="115.5" y="16">&#x2212;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="132.5" y="16">32</text><text font-family="Arial" font-size="16" text-anchor="middle" x="119.5" y="38">9</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="2.5" x2="36.5" y1="67.5" y2="67.5"/><text font-family="math135b31cfba37a56451b4768509d" font-size="16" text-anchor="middle" x="10.5" y="62">&#x2212;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="26.5" y="62">20</text><text font-family="Arial" font-size="16" text-anchor="middle" x="19.5" y="84">5</text><text font-family="math135b31cfba37a56451b4768509d" font-size="16" text-anchor="middle" x="47.5" y="73">=</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="58.5" x2="104.5" y1="67.5" y2="67.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="65.5" y="62">F</text><text font-family="math135b31cfba37a56451b4768509d" font-size="16" text-anchor="middle" x="77.5" y="62">&#x2212;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="94.5" y="62">32</text><text font-family="Arial" font-size="16" text-anchor="middle" x="81.5" y="84">9</text></svg>