A (9/10) meter long piece of wood is sawed twice, what is the average length of each section?
一根(9/10)米长的木料，锯2次，平均每段长多少米．
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">(9/10) / 3</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>