(3/5) of number A is equal to (2/3) of number B, number A is 60, find the number of B.
甲数的(3/5)等于乙数的(2/3)，甲数是60，求乙数．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/5) / (2/3)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">60 * (9/10)</gadget>
<output>54</output>

<result>54</result>