Use reciprocal conversion: clever calculation (35*46*57)/(24*35*46+35*46*57+46*57*68)= how much.
运用倒数转化：巧算(35*46*57)/(24*35*46+35*46*57+46*57*68)=多少．
<gadget id="calculator">24 / 57</gadget>
<output>8/19 = around 0.421053</output>

<gadget id="calculator">28 / 35</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(8/19) + 1 + (4/5)</gadget>
<output>211/95 = around 2.221053</output>

<gadget id="calculator">1 / (211/95)</gadget>
<output>95/211 = around 0.450237</output>

<result>95/211 = around 0.450237</result>