Dad needs 2.5 meters of cloth to make a jacket, and 1.2 meters to make a set of trousers. How many meters of cloth does Dad need to make a suit of clothes?
爸爸做一套上衣需要用布2.5米，做一套裤子用布1.2米，爸爸做一套衣服用布多少米？
<gadget id="calculator">2.5 + 1.2</gadget>
<output>3.7</output>

<result>3.7</result>