Question

Taking a=1/2 and b = -3/4.show that a+b=b+a.​

Answer 1

a=1/2 and b = -3/4

a+b=b+a.

1/2 - 3/4 = -3/4 +1/2

2- 3 = -3 + 2

4 4

-1/4 = -1/4

lhs = rhs

so a +b = b + a