Answer:
1st answer is correct
Explanation:

Given that,
b = -5
To find the value of the above expression, replace b with -5.

Now, to solve the above fractions, you have to make the denominator the same.
For that, multiply both the numerator and denominator of (1/2) & (-10/3) by 3 & 2 respectively.
Let us solve it now.
