Найти значение выражения:1) 2/3 * 3/82)4 - 3/83)1/6 + 3/84)1/3 - 1/85)4 2/15 + 3 2/9 (четыре целых, две пятнадцатых +

1) 2/3 * 3/8 = (2 * 3) / (3 * 8) = 6/24 = 1/4.

2) 4 - 3/8 = 3 8/8 - 3/8 = 3 + (8 - 3)/8 = 3 + 5/8 = 3 5/8. 

3) 1/6 + 3/8 = (1 * 4) / (6 * 4) + (3 * 3) / (8 * 3) = 4/24 + 9/24 = 13/24. 

4) 1/3 - 1/8 = (1 * 8) / (3 * 8) - (1 * 3) / (8 * 3) = 8/24 + 3/24 = 11/24. 

5) 4 2/15 + 3 2/9 = 62/15 + 29/9 = (62 * 3) / (15 * 3) + (29 * 5) / (9 * 5) = 186/45 + 145/45 = 331/45 = 7 16/45. 

6) 5/6 * 18 = (5 * 18) / 6 = 90/6 = 15. 

7) 1/4 + 2/3 = 3/12 + 8/12 = 11/12.  

8) 5 : 1/8 = 5 * 8/1 = 5 * 8 = 40. 

9) 3/8 : 5/8 = 3/8 * 8/5 = 24/40 = 3/5.