(2/3) of a number is 64, what is (5/6) of this number.
一个数的(2/3)是64，这个数的(5/6)是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">64 / (2/3)</gadget>
<output>96</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

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

<result>80</result>