Calculate with a simple method: (17/25)*(5/19)+(14/25)*(17/19).
用简便方法计算：(17/25)*(5/19)+(14/25)*(17/19)．
<gadget id="calculator">17 / 25</gadget>
<output>17/25 = around 0.68</output>

<gadget id="calculator">5 / 19</gadget>
<output>5/19 = around 0.263158</output>

<gadget id="calculator">(17/25) * (5/19)</gadget>
<output>17/95 = around 0.178947</output>

<gadget id="calculator">14 / 25</gadget>
<output>14/25 = around 0.56</output>

<gadget id="calculator">17 / 19</gadget>
<output>17/19 = around 0.894737</output>

<gadget id="calculator">(14/25) * (17/19)</gadget>
<output>238/475 = around 0.501053</output>

<gadget id="calculator">(17/95) + (238/475)</gadget>
<output>17/25 = around 0.68</output>

<result>17/25 = around 0.68</result>