<math xmlns="http://www.w3.org/1998/Math/MathML" id="p2.m1" class="ltx_Math" alttext="1+2=3" display="inline">
  <semantics>
    <apply id="p2.m1.7" xref="p2.m1.7.pmml">
      <eq id="p2.m1.1" xref="p2.m1.1.pmml"/>
      <apply id="p2.m1.5" xref="p2.m1.5.pmml">
        <plus id="p2.m1.2" xref="p2.m1.2.pmml"/>
        <cn type="integer" id="p2.m1.3" xref="p2.m1.3.pmml">1</cn>
        <cn type="integer" id="p2.m1.4" xref="p2.m1.4.pmml">2</cn>
      </apply>
      <cn type="integer" id="p2.m1.6" xref="p2.m1.6.pmml">3</cn>
    </apply>
    <annotation-xml encoding="application/openmath+xml">
      <OMOBJ xmlns="http://www.openmath.org/OpenMath">
        <OMA>
          <OMS cd="latexml" name="equals"/>
          <OMA>
            <OMS cd="latexml" name="plus"/>
            <OMI>1</OMI>
            <OMI>2</OMI>
          </OMA>
          <OMI>3</OMI>
        </OMA>
      </OMOBJ>
    </annotation-xml>
    <annotation-xml encoding="MathML-Presentation">
      <mrow id="p2.m1.7.pmml" xref="p2.m1.7">
        <mrow id="p2.m1.5.pmml" xref="p2.m1.5">
          <mn id="p2.m1.3.pmml" xref="p2.m1.3">1</mn>
          <mo id="p2.m1.2.pmml" xref="p2.m1.2">+</mo>
          <mn id="p2.m1.4.pmml" xref="p2.m1.4">2</mn>
        </mrow>
        <mo id="p2.m1.1.pmml" xref="p2.m1.1">=</mo>
        <mn id="p2.m1.6.pmml" xref="p2.m1.6">3</mn>
      </mrow>
    </annotation-xml>
    <annotation-xml encoding="application/x-latexml">
      <XMath xmlns="http://dlmf.nist.gov/LaTeXML">
        <XMApp id="p2.m1.7.xm" fragid="p2.m1.7.xm">
          <XMTok meaning="equals" role="RELOP" id="p2.m1.1.xm" fragid="p2.m1.1.xm">=</XMTok>
          <XMApp id="p2.m1.5.xm" fragid="p2.m1.5.xm">
            <XMTok meaning="plus" role="ADDOP" id="p2.m1.2.xm" fragid="p2.m1.2.xm">+</XMTok>
            <XMTok meaning="1" role="NUMBER" id="p2.m1.3.xm" fragid="p2.m1.3.xm">1</XMTok>
            <XMTok meaning="2" role="NUMBER" id="p2.m1.4.xm" fragid="p2.m1.4.xm">2</XMTok>
          </XMApp>
          <XMTok meaning="3" role="NUMBER" id="p2.m1.6.xm" fragid="p2.m1.6.xm">3</XMTok>
        </XMApp>
      </XMath>
    </annotation-xml>
    <annotation encoding="application/x-tex">1+2=3</annotation>
  </semantics>
</math>