9*(1/36)+12*(1/48)+15*(1/75)+18*(1/90)+21*(1/126)+24*(1/144)+27* (1/216)+30*(1/240).
9*(1/36)+12*(1/48)+15*(1/75)+18*(1/90)+21*(1/126)+24*(1/144)+27*(1/216)+30*(1/240)．
<gadget id="calculator">1 / 36</gadget>
<output>1/36 = around 0.027778</output>

<gadget id="calculator">9 * (1/36)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 48</gadget>
<output>1/48 = around 0.020833</output>

<gadget id="calculator">12 * (1/48)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 75</gadget>
<output>1/75 = around 0.013333</output>

<gadget id="calculator">15 * (1/75)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 90</gadget>
<output>1/90 = around 0.011111</output>

<gadget id="calculator">18 * (1/90)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 126</gadget>
<output>1/126 = around 0.007937</output>

<gadget id="calculator">21 * (1/126)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 144</gadget>
<output>1/144 = around 0.006944</output>

<gadget id="calculator">24 * (1/144)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 216</gadget>
<output>1/216 = around 0.00463</output>

<gadget id="calculator">27 * (1/216)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 240</gadget>
<output>1/240 = around 0.004167</output>

<gadget id="calculator">30 * (1/240)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/4) + (1/4) + (1/5) + (1/5) + (1/6) + (1/6) + (1/8) + (1/8)</gadget>
<output>89/60 = around 1.483333</output>

<result>89/60 = around 1.483333</result>