Calculation: ((1/13)+(1/14)+(1/16)+(1/19))*(1+(1/13)+(1/14)+(1/16))- (1+(1/13)+(1/14)+(1/16)+(1/19))*((1/13)+(1/14)+(1/16))
计算：((1/13)+(1/14)+(1/16)+(1/19))*(1+(1/13)+(1/14)+(1/16))-(1+(1/13)+(1/14)+(1/16)+(1/19))*((1/13)+(1/14)+(1/16))
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">1 / 14</gadget>
<output>1/14 = around 0.071429</output>

<gadget id="calculator">1 / 16</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">1 / 19</gadget>
<output>1/19 = around 0.052632</output>

<gadget id="calculator">(1/13) + (1/14) + (1/16) + (1/19)</gadget>
<output>7_289/27_664 = around 0.263483</output>

<gadget id="calculator">1 + (1/13) + (1/14) + (1/16)</gadget>
<output>1_763/1_456 = around 1.210852</output>

<gadget id="calculator">(7_289/27_664) * (1_763/1_456)</gadget>
<output>12_850_507/40_278_784 = around 0.319039</output>

<gadget id="calculator">1 + (1/13) + (1/14) + (1/16) + (1/19)</gadget>
<output>34_953/27_664 = around 1.263483</output>

<gadget id="calculator">(1/13) + (1/14) + (1/16)</gadget>
<output>307/1_456 = around 0.210852</output>

<gadget id="calculator">(34_953/27_664) * (307/1_456)</gadget>
<output>10_730_571/40_278_784 = around 0.266408</output>

<gadget id="calculator">(12_850_507/40_278_784) - (10_730_571/40_278_784)</gadget>
<output>1/19 = around 0.052632</output>

<result>1/19 = around 0.052632</result>