There is a box of candies with a total of 84 pieces. You eat (1/2) of this box for the first time, and (1/3) of this box for the second time. How many pieces of candy did you eat in total?
有一盒糖果，共有84块，第一次吃这盒的(1/2)，第二次吃这盒的(1/3)，两次一共吃了多少块糖．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">84 * (1/2)</gadget>
<output>42</output>

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

<gadget id="calculator">84 * (1/3)</gadget>
<output>28</output>

<gadget id="calculator">42 + 28</gadget>
<output>70</output>

<result>70</result>