There are 75 gray rabbits, less than the white rabbits (1/6), how many white rabbits are there?
灰兔有75只，比白兔少(1/6)，白兔有多少只？
<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">75 / (5/6)</gadget>
<output>90</output>

<result>90</result>