Calculation: 15*((27/28)*(2/15))*(2/27).
计算：15*((27/28)*(2/15))*(2/27)．
<gadget id="calculator">27 / 28</gadget>
<output>27/28 = around 0.964286</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(27/28) * (2/15)</gadget>
<output>9/70 = around 0.128571</output>

<gadget id="calculator">2 / 27</gadget>
<output>2/27 = around 0.074074</output>

<gadget id="calculator">15 * (9/70) * (2/27)</gadget>
<output>1/7 = around 0.142857</output>

<result>1/7 = around 0.142857</result>