Mr. Wang, Mr. Li, Mr. Zhao, and Mr. Yang compare their ages. The age of Mr. Wang is (1/2) of the sum of the ages of the other three, and the age of Mr. Li is (1/3) of the sum of the ages of the other three. Mr. Zhao's age is (1/4) the age of the other three people. Mr. Yang is 26 years old. Do you know how old Mr. Wang is?
王先生、李先生、赵先生、杨先生四个人比年龄，王先生的年龄是另外三人年龄和的(1/2)，李先生的年龄是另外三人年龄和的(1/3)，赵先生的年龄是其他三人年龄和的(1/4)，杨先生26岁，你知道王先生多少岁？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + 4</gadget>
<output>5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/3) - (1/4) - (1/5)</gadget>
<output>13/60 = around 0.216667</output>

<gadget id="calculator">26 / (13/60)</gadget>
<output>120</output>

<gadget id="calculator">120 * (1/3)</gadget>
<output>40</output>

<result>40</result>