A and B are natural numbers, and (1/(A))-(1/(B))=(1/182), A:B=7:13, A+B=how much.
A、B为自然数，而且(1/(A))-(1/(B))=(1/182)，A：B=7：13，A+B=多少．
<gadget id="calculator">13 + 7</gadget>
<output>20</output>

<gadget id="calculator">1 / 182</gadget>
<output>1/182 = around 0.005495</output>

<gadget id="calculator">(1/182) * 91</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">6 / (1/2)</gadget>
<output>12</output>

<gadget id="calculator">20 * 12</gadget>
<output>240</output>

<result>240</result>