Question 421108
(1/2)+((2/3)÷(3/4))-((4/5)-(5/6))

{{{1/2 + (2/3*4/3)- ((24-25)/30)}}}

{{{1/2 + (8/9)- (-1/30)}}}

LCD =270

{{{(140+240+9)/270}}}

{{{389/270}}}