The number of A is (3/4), the number of B is less than the number of A (2/3), and the number of C is exactly half of the combined numbers of A and B. What is the number of C?
甲数是(3/4)，乙数比甲数少(2/3)，丙数恰好是甲、乙两数合的一半，丙数是多少？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/4) - (2/3)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) + (3/4)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(5/6) / 2</gadget>
<output>5/12 = around 0.416667</output>

<result>5/12 = around 0.416667</result>