There are 120 goats, less than sheep (1/6). How many sheep are there?
山羊有120只，比绵羊少(1/6)，绵羊有多少只？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">120 / (5/6)</gadget>
<output>144</output>

<result>144</result>