What is the value of x in the equation 1/2x-2/3=30

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 

                -1/2*x+1/3-(1/5*x-1/6)=0 

 3.1    Find the Least Common Multiple 

      The left denominator is :       5 

      The right denominator is :       6 

except a rational number. : )

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun