(1/35)+(3003/35035)+(11011011/35035035)+(13013013013/35035035035).
(1/35)+(3003/35035)+(11011011/35035035)+(13013013013/35035035035)．
<gadget id="calculator">1 / 35</gadget>
<output>1/35 = around 0.028571</output>

<gadget id="calculator">3_003 / 35_035</gadget>
<output>3/35 = around 0.085714</output>

<gadget id="calculator">11_011_011 / 35_035_035</gadget>
<output>11/35 = around 0.314286</output>

<gadget id="calculator">13_013_013_013 / 35_035_035_035</gadget>
<output>13/35 = around 0.371429</output>

<gadget id="calculator">(1/35) + (3/35) + (11/35) + (13/35)</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>