The (5/6) of a number is 10 less than its (8/9), what is this number?
一个数的(5/6)比它的(8/9)少10，这个数是多少？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(8/9) - (5/6)</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">10 / (1/18)</gadget>
<output>180</output>

<result>180</result>