<<< native
[ EFraction
    NormalFrac
    (ESqrt
       (EGrouped [ EIdentifier "x" , ESymbol Bin "-" , ENumber "3" ]))
    (ESqrt (EGrouped [ ENumber "3" , EIdentifier "x" ]))
, EFraction
    NormalFrac
    (ESqrt
       (EGrouped
          [ ENumber "2" , EIdentifier "x" , ESymbol Bin "-" , ENumber "3" ]))
    (ESqrt (EGrouped [ ENumber "3" , EIdentifier "x" ]))
]
>>> omml
<?xml version='1.0' ?>
<m:oMathPara>
  <m:oMathParaPr>
    <m:jc m:val="center" />
  </m:oMathParaPr>
  <m:oMath>
    <m:f>
      <m:fPr>
        <m:type m:val="bar" />
      </m:fPr>
      <m:num>
        <m:rad>
          <m:radPr>
            <m:degHide m:val="1" />
          </m:radPr>
          <m:deg />
          <m:e>
            <m:r>
              <m:t>x</m:t>
            </m:r>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>-</m:t>
            </m:r>
            <m:r>
              <m:t>3</m:t>
            </m:r>
          </m:e>
        </m:rad>
      </m:num>
      <m:den>
        <m:rad>
          <m:radPr>
            <m:degHide m:val="1" />
          </m:radPr>
          <m:deg />
          <m:e>
            <m:r>
              <m:t>3</m:t>
            </m:r>
            <m:r>
              <m:t>x</m:t>
            </m:r>
          </m:e>
        </m:rad>
      </m:den>
    </m:f>
    <m:f>
      <m:fPr>
        <m:type m:val="bar" />
      </m:fPr>
      <m:num>
        <m:rad>
          <m:radPr>
            <m:degHide m:val="1" />
          </m:radPr>
          <m:deg />
          <m:e>
            <m:r>
              <m:t>2</m:t>
            </m:r>
            <m:r>
              <m:t>x</m:t>
            </m:r>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>-</m:t>
            </m:r>
            <m:r>
              <m:t>3</m:t>
            </m:r>
          </m:e>
        </m:rad>
      </m:num>
      <m:den>
        <m:rad>
          <m:radPr>
            <m:degHide m:val="1" />
          </m:radPr>
          <m:deg />
          <m:e>
            <m:r>
              <m:t>3</m:t>
            </m:r>
            <m:r>
              <m:t>x</m:t>
            </m:r>
          </m:e>
        </m:rad>
      </m:den>
    </m:f>
  </m:oMath>
</m:oMathPara>