Simone ate 1/2 of an apple each day for 16 days. Lauri ate 1/3 of an apple each day for 15 days. How many apples did the two girls eat altogether?
Simone = (1/2) * 16 = 
<gadget id="calculator">(1/2)*16</gadget>
<output>8</output>
8.
Lauri = (1/3) * 15 = 
<gadget id="calculator">(1/3)*15</gadget>
<output>5</output>
5
8 + 5 = 
<gadget id="calculator">8+5</gadget>
<output>13</output>
13.
Together they ate 13 apples.

<result>13</result>