What is 5 (1/7) plus 2 (1/7)
5个(1/7)加上2个(1/7)是多少
<gadget id="calculator">7 / 1</gadget>
<output>7</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(5/7) + (2/7)</gadget>
<output>1</output>

<result>1</result>