4.Simplify the following. (a) `6frac(1)(2)+2frac(2)(3)-1/4`

Simplify the following : (1/3)^2 xx (2/3)^3

Simplify the following : (1/3)^2 xx (2/3)^3

Simplify the following 3.6a^(3)b^(2)c div 1.2 ab^(2)c^(3)

Simplify the following (2/3)^-6 xx (3/2)^-4

Simplify the following : 2/3" of "(1/3+2/7)

Simplify the following : 1""2/3+2""1/2+3/4

Simplify the following : (1/10+3/5) div 3""1/2

Simplify the following (1 to 3) : 1/2 div (1/3+1/4)

Simplify the following : (1/4" of "2""2/7) div 3/5

Simplify each of the following : (i) [{((-1)/5)^(-2)}^2]^(-1)\ (ii) {(1/3)^(-2)-\ (1/2)^(-3)}-:(1/4)^(-2)