clothing store buys a batch of shirts, including 120 women's shirts, 20 more than men's shirts (2/5). How many men's shirts to buy?
服装店购进一批衬衫，其中女式衬衫120件，比男式衬衫的(2/5)多20件．购进男式衬衫多少件？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">120 * (2/5)</gadget>
<output>48</output>

<gadget id="calculator">48 + 20</gadget>
<output>68</output>

<result>68</result>