1) 2;
2) 11/12096.
Пошаговое объяснение:
1) 13/9 • 8/7 + 22/63 = 104/63 + 22/63 = 126/63 = 2;
2) 17/28 • 3/48 - 1/27 = 17/28 • 1/16 - 1/27 = 17/448 - 1/27 = 459/12096 - 448/12096 = 11/12096 .
1) 2;
2) 11/12096.
Пошаговое объяснение:
1) 13/9 • 8/7 + 22/63 = 104/63 + 22/63 = 126/63 = 2;
2) 17/28 • 3/48 - 1/27 = 17/28 • 1/16 - 1/27 = 17/448 - 1/27 = 459/12096 - 448/12096 = 11/12096 .