It takes (1/3) hours for A to copy one manuscript, and (1/2) hour for B to copy one manuscript. What is the formula for asking A and B to copy two manuscripts together?
甲抄一份稿件要(1/3)小时，乙抄一份稿件要(1/2)小时，求甲乙合抄两份稿件，需多少小时的算式是多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>