The number of A is (2/3) of the number of B, the number of B is (3/4) of the number of C, the number of A is 40, what is the number of C?
甲数是乙数的(2/3)，乙数是丙数的(3/4)，甲数是40，丙数是多少？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">40 / (2/3) / (3/4)</gadget>
<output>80</output>

<result>80</result>