Four children jointly buy a boat, the first child pays half of the other three children, the second one (1/4), the third child pays the other three For the child (1/3), the fourth child paid 13 yuan, how much did the four children pay in total?
四个小孩合买一只小船，第一个孩子付的钱是其它三个孩子的一半，第二个是其他三个孩子的(1/4)，第三个孩子付的钱是其他三个孩子的(1/3)，第四个孩子付的钱是13元，问四个孩子总共付了多些钱？
<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">(1/3) + (1/4) + (1/5)</gadget>
<output>47/60 = around 0.783333</output>

<gadget id="calculator">1 - (47/60)</gadget>
<output>13/60 = around 0.216667</output>

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

<result>60</result>