Question

solve (a% of b ) + ( b% of a )

Answer 1

a% of b=a/100*b
=ab/100
b% of a =b/100*a
=ab/100

a% of b+b% of a
=ab/100+ab/100
=ab+ab/100
=2ab/100
=ab/50

hope this helps you

Answer 2

ab/100= a percent of b
ba/100 = b percent of a 
we can see both are same 
so if  u add both u get 2ab/100=ab/50