Запишите дела в виде дела естественных чисел. 1:3/8 ; 5/12:17/18

1) 1 : 3/8 = 1 * 8/3 = 8/3;

2) 5/12 : 17/18 = 5/12 * 18/17 = (5 * 18)/(12 * 17) = 15/34;

3) 3/4 : 5/18 = 3/4 * 18/5 = (3 * 9)/(2 * 5) = 27/10;

4) 1 2/3 : 1 1/3 = (1 * 3 + 2)/3 : (1 * 3 + 1)/3 = 5/3 : 4/3 = 5/3 * 3/4 = 5/4;

5) 4/9 : 11/9 = 4/9 * 9/11 = 4/11;

6) 0,8 : 0,03 = 8/10 : 3/100 = 8/10 * 100/3 = 80/3;

7) 2 5/8 : 3 1/6 = (2 * 8 + 5)/8 : (3 * 6 + 1)/6 = 21/8 : 19/6 =21/8 * 6/19 = (21 * 6)/(8 * 19) = (21 * 3)/(4 * 19) = 63/76;

8) 3 1/2 : 3,6 = (3 * 2 + 1)/2 : 36/10 = 7/2 * 10/36 = 70/72 = 35/36.