x+(5/6)x=77．
x+(5/6)x=77．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 + (5/6)</gadget>
<output>11/6 = around 1.833333</output>

<gadget id="calculator">77 / (11/6)</gadget>
<output>42</output>

<result>42</result>