What is the product of multiplying the largest true fraction whose fractional unit is (1/10) by the reciprocal of (29/30).
用分数单位是(1/10)的最大真分数乘以(29/30)的倒数，积是多少．
<gadget id="calculator">10 / 1</gadget>
<output>10</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">30 / 29</gadget>
<output>30/29 = around 1.034483</output>

<gadget id="calculator">(9/10) * (30/29)</gadget>
<output>27/29 = around 0.931034</output>

<result>27/29 = around 0.931034</result>