-16 1/ 4
Пошаговое объяснение:
1)-11 3 /4 + (-2 5/ 6 ) = -11 3 /4 - 2 5/ 6 = -13 - 3 /4 - 5 /6 = -13 - 9/ 12 - 10 /12 = - 13 - 19/ 12 = - 13 - 1 7/12 = -14 7 /12
2)-14 7/ 12 + (-1 2/ 3 ) = -14 7/ 12 - 1 2/ 3 = -15 - 7/ 12 - 2/ 3 = -15 - 7/ 12 - 8 /12 = - 15 - ( 7 + 8) /12 = - 15 - 15/ 12 = -15 -1 1/4 = -16 1/ 4
-16 1/ 4
Пошаговое объяснение:
1)-11 3 /4 + (-2 5/ 6 ) = -11 3 /4 - 2 5/ 6 = -13 - 3 /4 - 5 /6 = -13 - 9/ 12 - 10 /12 = - 13 - 19/ 12 = - 13 - 1 7/12 = -14 7 /12
2)-14 7/ 12 + (-1 2/ 3 ) = -14 7/ 12 - 1 2/ 3 = -15 - 7/ 12 - 2/ 3 = -15 - 7/ 12 - 8 /12 = - 15 - ( 7 + 8) /12 = - 15 - 15/ 12 = -15 -1 1/4 = -16 1/ 4