Any repeated fraction is written as the number devided by nine(s).
for example
0.1111... =1/9
0.23232323... = 23/99
so the given number= -2 -7/9 = -25/9
U clicked the answer already
Commutative property: a + b = b + a
3 + 5 + 7 = 3 + 7 + 5 = 10 + 5 = 15
The answer would be 56.10