Question

find the sum of the following 5/8 and -7/2​

Answer 1

Step-by-step explanation:

= 5/8 + (-7)/2

= 5 +(-28)/8

= -23/8. is the answer

Answer 2

Step-by-step explanation:

First calculate the number in series.....

l=a+(n−1)d

−230=−5+(n−1)−3

−225=−3n+3

3n=228

n=76.

Now,

Sum of the series =

2

n

(a+l)

76/2(−5−230)

38×−235=−8930.