passed

thearithmeticmean1

W3C sample	WIRIS
	$\bar{س} = \frac{٧ + ١١ + ٩ + ٥}{٤} = \frac{٣٢}{٤} = ٨$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block" dir="rtl">
  <mrow>
    <mrow>
      <mover>
        <mi>س</mi>
        <mo>¯</mo>
      </mover>
      <mo>=</mo>
    </mrow>
    <mfrac>
      <mrow>
        <mn>٧</mn>
        <mo>+</mo>
        <mn>١١</mn>
        <mo>+</mo>
        <mn>٩</mn>
        <mo>+</mo>
        <mn>٥</mn>
      </mrow>
      <mrow>
        <mn>٤</mn>
      </mrow>
    </mfrac>
    <mo>=</mo>
    <mfrac>
      <mrow>
        <mn>٣٢</mn>
      </mrow>
      <mrow>
        <mn>٤</mn>
      </mrow>
    </mfrac>
    <mo>=</mo>
    <mn>٨</mn>
  </mrow>
</math>

Author: Abdelshafi Bekhit, school-book of high school for mathematics, Province Kuwait of Kuwait and the same in Arabic probably.