Simplify: (a) `((6+6+6+6)-:6)/(4+4+4+4+4)` (b) `((2+3)xx5+3-:1/2)/(6+5xx4-:4/5)`

Simplify : 2(3)/(4)-1(5)/(6)

Simplify: 5/6xx4 2/7

Simplify: (-4(5)/(6))+(-7(3)/(4))

Simplify: (3.6+6.4) (3.6-6.4) - (3.6-6.4)^(2) = ?

Simplify (-4.6) xx (-4.6)+(-4.6+0.6)

Simplify: (a) 108-:36 of (1)/(4)+(2)/(5)xx3(1)/(4) (b) (2)/(3)xx(5)/(6)+(4)/(9)-(3)/(4)+(2)/(9)xx(5)/(9)-:(2)/(9)

Simplify: 4""5/6-2""2/3

Simplify: 3^5 xx 3^6/3^4 xx 3^4

Simplify : (4.5xx2+6.6)div0.03