3/4 k-1/6=1/2

3/4 k-1/6=1/2

3/4k = 1/2 + 1/6
3/4k = 3/6 + 1/6
3/4k = 4/6
k = (4/6)/(3/4)
k = (4/6) * (4/3)
k = 16/18 = 8/9