A shepherd was driving a flock of sheep to graze, and a passer-by followed him with a sheep. He said to the shepherd, "This flock of sheep is really quite a lot, there are about 100 of them!" Double the number of sheep, add half of the original flock, and add a quarter of the original flock, including this sheep in your hand, there are exactly 100. "You know the flock How many are there?
牧人赶着一群羊放牧，有一位过路人牵着一只羊从后面跟上，他对牧羊人说："这群羊真不少，大概有100只吧！"牧羊人答道："这群羊加上一倍，再加上原来这群羊的一半，又加上原来这群羊的四分之一，连你手中牵着的这只羊，才刚好100只．"你知道这群羊有多少只吗？
<gadget id="calculator">100 - 1</gadget>
<output>99</output>

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

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

<gadget id="calculator">1 + 1 + (1/2) + (1/4)</gadget>
<output>11/4 = around 2.75</output>

<gadget id="calculator">99 / (11/4)</gadget>
<output>36</output>

<result>36</result>