(-2,56+(-3,34))+(-2 2/3+(-1 2/15))

Interpret using decimal commas and mixed numbers.

1. (-2,56 + (-3,34)) = -2,56 - 3,34 = -5,90

2. (-2 2/3 + (-1 2/15)) = -(8/3) - (17/15) = -40/15 - 17/15 = -57/15 = -19/5 = -3,80

Total: -5,90 + (-3,80) = -9,70

In fractional form: -59/10 + (-19/5) = -59/10 - 38/10 = -97/10 = -9,7.