The difference between A and B is 36, (2/5) of A is equal to B, find A.
甲、乙两数之差是36，甲数的(2/5)等于乙数，求甲数．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">36 / (3/5)</gadget>
<output>60</output>

<result>60</result>