Simplify: (a) `108-:36` of `1/4+2/5xx3 1/4` (b) `2/3xx5/6+4/9-3/4+2/9xx5/9-:2/9`

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: (a)1 3/4xx 2 2/5xx 3 4/7 (b) 5 5/9-: 3 1/3

2xx4+5xx9-:4=?

Simplify : ((-9)/4xx5/3)+\ ((13)/2xx5/6)

Simplify: 1/2 ÷ 4/3 xx 2/3 ÷ 1/2 + 3/4 - 5/2 + 2/3 xx 9/4 ÷ 2/3

1/2xx 5/4 + 6/8 xx 10/9

Simplify : ((-3)/2xx4/5)+(9/5xx(-10)/3)-(1/2xx3/4)

Simplify: (i) ((13)/9xx(-15)/2)+(7/3xx8/5)+(3/5xx1/2) (ii) (3/(11)xx5/6)-(9/(12)xx4/3)+(5/(13)xx6/(15))