(1/43)+(303/8686)+(90909/434343).
(1/43)+(303/8686)+(90909/434343)．
<gadget id="calculator">1 / 43</gadget>
<output>1/43 = around 0.023256</output>

<gadget id="calculator">303 / 8_686</gadget>
<output>3/86 = around 0.034884</output>

<gadget id="calculator">90_909 / 434_343</gadget>
<output>9/43 = around 0.209302</output>

<gadget id="calculator">(1/43) + (3/86) + (9/43)</gadget>
<output>23/86 = around 0.267442</output>

<result>23/86 = around 0.267442</result>