Answer:
The answer is (-31/10)
Step-by-step explanation:
we are given, 4 + (-7 1/10)
7 1/10 = (7*10+1/10) = 71/10
So,
4 + (-7 1/10)
4 - 71/10
Cross multiply
(4*10 - 71)/10
(40 - 71)/10 = (-31/10)
Thus, The answer is (-31/10)