Simplify the following: (a) `4/5+2/5-3/5`

Simplify the following : (2""4/5-1""3/5) div (3""3/5-2""1/5) .

Simplify the following : (4/5+2)(3-2/3) .

Simplify the following : 4/5 times 2""3/8-2 times 3/5

Simplify the following : (i) 3/11+5/11+9/11 " (ii) " 3""2/3+1""3/5+2""4/5 .

Simplify the following : (i) 3/4+2/5 " (ii) "3/7-5/28" (iii) "2""1/3+3""5/6 .

Simplify the following : (i) 9/14+3/14-5/14" (ii) "2""5/7-3""3/7+5""4/7 .

Simplify the following (5)/(i^(3))

Simplify the following (5p-3) (5p-3)

Simplify each of the following : (i) 3/(5-sqrt(3))+2/(5+sqrt(3)) (ii) (4+sqrt(5))/(4-sqrt(5))+(4-sqrt(5))/(4+sqrt(5)) (iii) (sqrt(5)-2)/(sqrt(5)+2)-(sqrt(5)+2)/(sqrt(5)-2)

Simplify the following (2x - 3y ) (4x - 5y)