Add its reciprocal to 1.4 and subtract (5/7), what is the result?
1.4加上它的倒数，再减去(5/7)，结果是多少？
<gadget id="calculator">1 / 1.4</gadget>
<output>0.714286</output>

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

<gadget id="calculator">0.714286 - (5/7)</gadget>
<output>0</output>

<gadget id="calculator">1.4 + 0</gadget>
<output>1.4</output>

<result>1.4</result>