1) 1(5,2-3целых 1/3):1целая 1/3= 2)9,8*3,8*1,45/9,5*2,9*0,02= 3)((3/4*7/11):3/5-1/22:2/31)*22=

1) 1 ( 5,2 - 3 1/3 ) / 1 1/3 = 1 6/15. 

1. 5 2/10 - 3 1/3 = 52/10 - 10/3 = 156/30 - 100/30 = 56/30 = 28/15; 

2. 1 * 28/15 = 28/15; 

3. 28/15 : 1 1/3 = 28/15 : 4/3 = 28/15 * 3/4 = 84/60 = 21/15 = 1 6/15. 

2) 9,8 * 3,8 * 1,45 : 9,5 * 2,9 * 0,02 =0,329672. 

1. 9,8 * 3,8 = 37,24;

2. 37,24 * 1,45 = 53,998; 

3. 53,998 : 9,5 = 5,684; 

4. 5,684 * 2,9 = 16,4836;

5. 16,4836 * 0,02 = 0,329672. 

3) ( ( 3/4 * 7/11 ) : 3/5 - 1/22 : 2/31 ) * 22 = 2

1. 3/4 * 7/11 = 21/44; 

2. 3/5 = 21/44 * 5/3 = 7/44 * 5/1 = 35/44; 

3. 1/22 : 2/31 = 1/22 * 31/2 = 31/44; 

4. 35/44 - 31/44 = 4/44 = 2/22; 

5. 2/22 * 22 = 2.