There are four kinds of fruits: apples, oranges, pears, and pineapples. The number of apples is 1/6 of the total number of other three fruits, the number of oranges is 5/16 of the total number of other three fruits, and the number of pears is The number is (2/5) of the total number of other three fruits. There are 56 pineapples. How many of these fruits are there in total?
现有苹果、桔子、梨、菠萝四种水果各若干个，苹果的数目是其他三种水果总数的(1/6)，桔子的数目是其他三种水果总数的(5/16)，梨的数目是其他三种水果总数的(2/5)，菠萝有56个，这些水果一共有多少个？
<gadget id="calculator">1 + 6</gadget>
<output>7</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">16 + 5</gadget>
<output>21</output>

<gadget id="calculator">5 / 21</gadget>
<output>5/21 = around 0.238095</output>

<gadget id="calculator">2 + 5</gadget>
<output>7</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">1 - (1/7) - (5/21) - (2/7)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">56 / (1/3)</gadget>
<output>168</output>

<result>168</result>