Tobias bought a big pizza with 60 pieces. He ate 2/5 of the pieces on the first day, 10 pieces on the second day, and 7/13 of the remaining pieces on the third day. How many pizza pieces has he eaten so far?
On the first day, Tobias ate 2/5*60 = 
<gadget id="calculator">2/5*60</gadget>
<output>24</output>
24 pieces of the pizza.
On the second day, Tobias ate 10 more pieces of the pizza, totaling 24+10 = 
<gadget id="calculator">24+10</gadget>
<output>34</output>
34 pieces.
The number of pieces of pizza remaining is 60-34 = 
<gadget id="calculator">60-34</gadget>
<output>26</output>
26.
On the third day, Tobias ate 7/13*26 = 
<gadget id="calculator">7/13*26</gadget>
<output>14</output>
14 pieces of pizza.
So far, he has eaten 14+34 = 
<gadget id="calculator">14+34</gadget>
<output>48</output>
48 pieces of the pizza he bought.

<result>48</result>