The number A is (2/3) of the number B, and the number B is 120. What is the number A?
甲数是乙数的(2/3)，乙数是120，甲数是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">120 * (2/3)</gadget>
<output>80</output>

<result>80</result>