(1/4) of the number A is equal to (1/3) of the number B. The number A is 20. What is the number B?
甲数的(1/4)和乙数的(1/3)相等，甲数是20，乙数是多少？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/4) / (1/3)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">20 * (3/4)</gadget>
<output>15</output>

<result>15</result>