tan30-1/3

1/√3-1/3 3-√3/3 √3(√3-1)/√3×√3 (√3-1)√3

(sin30/cos30) - 1/3 {(1/2)/(√3/2)} - (1/3) 1/√3) - (1/3) (√3-1)/3 since 3 is √3 times √3, we take lcm as 3 and simplify the third step. hope this helps. feel free to ask if confused.