The answer I got is 3.4888 (repeat)
Fraction: 157/45
Steps:
I turned the fractions into improper fractions.
So 7 5/9 turned into 44/9 and 3 2/15 turned into 21/15
I did that by doing 7*5 = 35+9 = 44
Same with the other one, 3*2 = 6+15 = 15
I then found a common denominator which was 45
I multiplied the first fraction, bottom and top by 5 and the second fraction, bottom and top by 3
I got 220/45 - 63/45 = 157/45
Hopefully that’s correct and I could help