Question

Обчисліть 1) 3/8+4/9 2) 7/12-3/8

Answer 1

Ответ:

27/72 - 32/72 = -5/72

2) 14/24 - 9/24 = 5/24

Answer 2

Пошаговое объяснение:

3/8 + 4/9 = 3/8 × 9 + 4/9 × 8 = 27/72 + 32/72 = 59/72

7/12 - 3/8 = 7/12 × 2 - 3/8 × 3 = 14/24 - 9/24 = 5/24