The fruit shop brings in 15 boxes of apples and 15 boxes of pears. It is known that each box of apples is 23.5 yuan, and each box of pears is 20.8 yuan. How much do these fruits cost?
水果店运进苹果和梨各15箱，已知苹果每箱23.5元，梨每箱20.8元．这些水果共要多少元？
<gadget id="calculator">23.5 + 20.8</gadget>
<output>44.3</output>

<gadget id="calculator">44.3 * 15</gadget>
<output>664.5</output>

<result>664.5</result>