Answer:-125/21 or -5 20/21
Steps:
First, change the mixed numbers to improper fractions.
So -3 2/7 = -23/7
2 2/3= 8/3
Second, make the denominators the same number
So multiply -23/7 by 3 and 8/3 by 7
-69/21-56/21
Subtract the numerators
-69-56= -125
So the answer is -125/21 or -5 20/21