Question

даю 10 баллов помогите пожалуйста​

Answer 1

1. 3) 5/11 * 22/25 = 2/5

6) 39 * 5/78 = 39/1 * 5/78 = 5/2 = 2 1/2

9) 15 : 3 1/3 = 15/1 : 10/3 = 15/1 * 3/10 = 9/2 = 4 1/2

2. 1) 2 * 3/4 = 2/1 * 3/4 = 3/2 = 1 1/2

2) 25 : 5/7 = 25/1 : 5/7 = 25/1 * 7/5 = 35

3) 36 * 7/54 = 36/1 * 7/54 = 14/3 = 4 2/3

4) 12 : 24/25 = 12/1 : 24/25 = 12/1 * 25/24 = 25/2 = 12 1/2

3. 1) x * 1 3/5 = 3 1/15

x = 3 1/15 : 1 3/5 = 46/15 : 8/5 = 46/15 * 5/8 = 46/24 = 1 22/24 = 1 11/12

x = 1 11/12

2) d : 1 3/4 = 7

d = 7 * 1 3/4 = 7/1 * 7/4 = 49/4 = 12 1/4

d = 12 1/4