4/45 ÷(12/25-4/15)+15/16×4/15

1) 12/25 - 4/15 = 36/75 - 20/75 = 16/75 2) 4/45 : 16/75 = 5/123) 15/16 • 4/15 = 1/44) 5/12 + 1/4 = 5/12 + 3/12 = 8/12 = 2/3 Ответ 2/3