60% of the number A is equal to 45% of the number B. The number B is 36. What is the number A?
甲数的60%与乙数的45%相等，乙数是36，甲数是多少？
<gadget id="calculator">45 / 100</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">36 * (9/20)</gadget>
<output>81/5 = around 16.2</output>

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(81/5) / (3/5)</gadget>
<output>27</output>

<result>27</result>