Grandma Li bought 5.5 kilograms of apples and 5.5 kilograms of peaches. The apples cost 6.3 yuan per kilogram, and the peaches cost 3.7 yuan per kilogram. How much did Grandma Li spend on these fruits?
李奶奶买了苹果和桃子各5.5千克，苹果每千克6.3元，桃子每千克3.7元．李奶奶买这些水果一共花了多少钱？
<gadget id="calculator">5.5 * 6.3</gadget>
<output>34.65</output>

<gadget id="calculator">5.5 * 3.7</gadget>
<output>20.35</output>

<gadget id="calculator">34.65 + 20.35</gadget>
<output>55</output>

<result>55</result>