(5/6) of a number is 80, what is (3/4) of this number.
一个数的(5/6)是80，这个数的(3/4)是多少．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">80 / (5/6)</gadget>
<output>96</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">96 * (3/4)</gadget>
<output>72</output>

<result>72</result>