Пошаговое объяснение:
-1/13 : (-1 9/13) + 5 13/25 : (-13 4/5) - 1/10 = -5/11,
1) -1/13 : (-1 9/13) = 1/13 : 22/13 = 1/13 * 13/22 = 1/22,
2) 5 13/25 : (-13 4/5) = -138/25 : 69/5 = -138/25 * 5/69 = -2/5,
3) 1/22 + (-2/5) - 1/10 = 5/110 - 44/110 - 11/110 = -50/110 = -5/11