Calculation: ((17/23)-(17/19))-((17/23)-(17/19))
计算：((17/23)-(17/19))-((17/23)-(17/19))
<gadget id="calculator">17 / 23</gadget>
<output>17/23 = around 0.73913</output>

<gadget id="calculator">17 / 19</gadget>
<output>17/19 = around 0.894737</output>

<gadget id="calculator">(17/23) - (17/19)</gadget>
<output>-68/437 = around -0.155606</output>

<gadget id="calculator">(-68/437) - (-68/437)</gadget>
<output>0</output>

<result>0</result>