There are 78 monkeys and 78 peaches. The big monkey eats 2, and the two little monkeys eat 1. They just finished eating. How many big monkeys are there?
有78只猴子和78个桃子，大猴吃2个，两个小猴吃1个，刚好吃完，大猴有多少只？
<gadget id="calculator">78 / 2</gadget>
<output>39</output>

<gadget id="calculator">78 - 39</gadget>
<output>39</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 - (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">39 / (3/2)</gadget>
<output>26</output>

<result>26</result>