Class 4 donated 48.6 yuan to the disaster area, and Class 2 donated 42.7 yuan to the disaster area. How much did the two classes donate in total?
四1班向灾区捐款48.6元，四2班向灾区捐款42.7元．两个班共捐款多少元？
<gadget id="calculator">48.6 + 42.7</gadget>
<output>91.3</output>

<result>91.3</result>