Найдите частное. 1) 6:2/7= 2)1:8/19= 3) 7/25:28= 4) 16 1/3:5 5/6= 5) 5 1/3:8/9:1/3= 6) 5 1/3:(8/9:1/3)=

6 : 2 / 7 = (6 ÷ 2) ÷ 7 = 3 ÷ 7 = 3/7.

1 : 8 / 19 = (1 ÷ 8) ÷ 19 = 1/8 ÷ 19 = 1 / (8 × 19) = 1 / 152.

7 / 25 : 28 = (7 / 25) ÷ 28 = 7 / (25 × 28) = 7 / 700 = 1 / 100.

16 1/3 : 5 5/6 = (16 + 1/3) ÷ (5 + 5/6) = (49/3) ÷ (35/6) = (49/3) × (6/35) = 294 / 105 = 2.8.

5 1/3 : 8 / 9 : 1/3 = (5 + 1/3) ÷ (8 / 9) ÷ (1/3) = (16/3) ÷ (8/9) ÷ (1/3) = (16/3) × (9/8) × (3/1) = 16 × 3 / (3 × 8) = 48 / 24 = 2.

5 1/3 : (8 / 9 : 1/3) = (5 + 1/3) ÷ (8 / 9 ÷ 1/3) = (16/3) ÷ (8 / 9 × 3/1) = (16/3) ÷ (24/9) = (16/3) × (9/24) = 144 / 72 = 2.