Teacher Wang bought a set of clothes for her daughter. The price of the top is 40 yuan, and the price of the pants is the top (4/5). How much did Mr. Wang spend on this suit?
王老师给女儿买了一套衣服，上衣的价格是40元，裤子的价格是上衣的(4/5)．王老师买这套衣服共花了多少元？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">40 * (4/5)</gadget>
<output>32</output>

<gadget id="calculator">32 + 40</gadget>
<output>72</output>

<result>72</result>