Evaluate:-

(a) (4/5 + 1/3)÷ 2/3

(b) (3/4 x 1/3 - 1/12)÷ 1/2

my answer of b comes 12 is it right? and if its not then can u explain me

thanks

b)

(3/4 x 1/3 - 1/12) ÷ (1/2)
= (1/4 - 1/12) ÷ (1/2)
= (1/6) ÷ (1/2)
= 1/3

the first one is 17/10