Answer: 58/15
Step-by-step explanation:
we will convert to improper fractions first -
12 2/3 = 38/3
8 4/5 = 44/5
Now we will find the lcm of denominators = 15
38/3 = 38*5 / 3*5 = 190/15
44/5 = 44*3/5*3 = 132/15
12 2/3 - 8 4/5 = 38/3 - 44/5 = 190/15 - 132/15 = 58/15