((252525*252252)/(525252*525525))*((987*655-321)/(666+987*654))=how much.
((252525*252252)/(525252*525525))*((987*655-321)/(666+987*654))=多少．
<gadget id="calculator">252_525 * 252_252</gadget>
<output>63_699_936_300</output>

<gadget id="calculator">525_252 * 525_525</gadget>
<output>276_033_057_300</output>

<gadget id="calculator">63_699_936_300 / 276_033_057_300</gadget>
<output>3/13 = around 0.230769</output>

<gadget id="calculator">987 * 655</gadget>
<output>646_485</output>

<gadget id="calculator">646_485 - 321</gadget>
<output>646_164</output>

<gadget id="calculator">987 * 654</gadget>
<output>645_498</output>

<gadget id="calculator">666 + 645_498</gadget>
<output>646_164</output>

<gadget id="calculator">646_164 / 646_164</gadget>
<output>1</output>

<gadget id="calculator">(3/13) * 1</gadget>
<output>3/13 = around 0.230769</output>

<result>3/13 = around 0.230769</result>