`2(4)/(5)-1(3)/(8)+3(1)/(2)=?`

7(1)/(3)-:(2)/(3)" of "2(1)/(5)+1(3)/(8)-:2(3)/(4)-1(1)/(2)

7(1)/(3)-:(2)/(3)" of "2(1)/(5)+1(3)/(8)-:2(3)/(4)-1(1)/(2)

The value of 3(1)/(3) div 2(1)/(2) of 1(3)/(5) + ((3)/(8) + (1)/(7) xx 1 (3)/(4)) is

8(3)/(5)+1(2)/(5)-4(3)/(10)

If the expression 2(1)/(2) of (3)/(4)xx(1)/(2)-:(3)/(2)+(1)/(2)-:(3)/(2)[(2)/(3)-(1)/(2) of (2)/(3)] is simplified,we get (a) (1)/(2) (b) (7)/(8)(c)1(5)/(8) (d) 2(3)/(5)

(-(1)/(2)-(2)/(3)+(4)/(5)-(1)/(3)+(1)/(5)+(3)/(4))/((1)/(2)+(2)/(3)-(4)/(3)+(1)/(3)-(1)/(5)-(4)/(5)) is simplified to