<Math xmlns="http://dlmf.nist.gov/LaTeXML" xmlns:m="http://www.w3.org/1998/Math/MathML" mode="inline" xml:id="p2.m1" tex="1+2=3" text="1 + 2 = 3" fragid="p2.m1">
  <m:math alttext="1+2=3" display="inline">
    <m:mrow>
      <m:mrow>
        <m:mn>1</m:mn>
        <m:mo>+</m:mo>
        <m:mn>2</m:mn>
      </m:mrow>
      <m:mo>=</m:mo>
      <m:mn>3</m:mn>
    </m:mrow>
  </m:math>
</Math>