The Tang Monk, his master and his disciples, came back from learning scriptures and jointly built a Hope Primary School. The ratio of investment between Tang Seng and the other three is 1:2, the ratio of Wukong and the other three is 1:3, and the ratio of Drifting and the other three is 1:4. Bajie invested 2.6 million yuan. How much does it cost to build this primary school?
唐僧师徒四人取经归来合资修了一所希望小学．唐僧与其他三人出资比是1：2，悟空与其他三人出资比是1：3，沙僧与其他三人出资比是1：4．八戒出资260万元．修建这所小学共要多少万元？
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

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

<gadget id="calculator">1 + 3</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">260 / (13/60)</gadget>
<output>1_200</output>

<result>1_200</result>