((621/126)+(739/358)+(458/947))*((739/358)+(458/947)+(378/207))-((621/126)+(739/ 358)+(458/947)+(378/207))*((739/358)+(458/947)).
((621/126)+(739/358)+(458/947))*((739/358)+(458/947)+(378/207))-((621/126)+(739/358)+(458/947)+(378/207))*((739/358)+(458/947))．
<gadget id="calculator">621 / 126</gadget>
<output>69/14 = around 4.928571</output>

<gadget id="calculator">739 / 358</gadget>
<output>739/358 = around 2.064246</output>

<gadget id="calculator">458 / 947</gadget>
<output>458/947 = around 0.483633</output>

<gadget id="calculator">(69/14) + (739/358) + (458/947)</gadget>
<output>8_871_488/1_186_591 = around 7.47645</output>

<gadget id="calculator">378 / 207</gadget>
<output>42/23 = around 1.826087</output>

<gadget id="calculator">(739/358) + (458/947) + (42/23)</gadget>
<output>34_106_423/7_797_598 = around 4.373965</output>

<gadget id="calculator">(8_871_488/1_186_591) * (34_106_423/7_797_598)</gadget>
<output>151_287_361_183_712/4_626_279_804_209 = around 32.701732</output>

<gadget id="calculator">(69/14) + (739/358) + (458/947) + (42/23)</gadget>
<output>253_881_046/27_291_593 = around 9.302537</output>

<gadget id="calculator">(739/358) + (458/947)</gadget>
<output>863_797/339_026 = around 2.547878</output>

<gadget id="calculator">(253_881_046/27_291_593) * (863_797/339_026)</gadget>
<output>109_650_842_945_831/4_626_279_804_209 = around 23.701732</output>

<gadget id="calculator">(151_287_361_183_712/4_626_279_804_209) - (109_650_842_945_831/4_626_279_804_209)</gadget>
<output>9</output>

<result>9</result>