2-(3/8)/(7/16)-(1/7).
2-(3/8)/(7/16)-(1/7)．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">7 / 16</gadget>
<output>7/16 = around 0.4375</output>

<gadget id="calculator">(3/8) / (7/16)</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">2 - (6/7) - (1/7)</gadget>
<output>1</output>

<result>1</result>