Помогите решить.(7/9+2/15)*2 8/14
7/9 + 2/15 = (7 × 5 + 2 × 3)/45 = (35 + 6)/45 = 41/45 41/45 × 2 8/14 = 41/45 × 18/7 = 82/35 = 2 12/35