-5\7+4\7 = -1\7

When we add two fractions, the denominators must be the same. In this case, the denominators are already the same, so we can simply add the numerators:

-5 + 4 = -1

Therefore, (-5\7)+4\7 = -1\7

(-5\8)+7\8 = 2\8

When we add two fractions, the denominators must be the same. In this case, the denominators are already the same, so we can simply add the numerators:

-5 + 7 = 2

Therefore, (-5\8)+7\8 = 2\8

(-1\6) + 1 = 5\6

To add these two fractions, we first need to find a common denominator:

Common denominator = 6

Converting the first fraction:

-1\6 = -1 * 1\1 = -1\6

Since the denominators are the same, we can add the numerators:

-1 + 1 = 0

Therefore, (-1\6) + 1 = 0\6 = 0