Question

помогите,срочно,даю 15 баллов​

Answer 1

Объяснение:

№2

1) 4. 3/13 : 1. 19/26 = 55/13 : 45/26 = 55/13 * 26/45 = 11/1 * 2/9 = 22/9 = 2. 4/9

2) 1. 5/7 - 2. 4/9 = 1. 45/63 - 2. 28/63 = 1. 45/63 - 1. 91/63 = -46/63

№4

1) 47/48 : 3. 13/27 = 47/48 : 94/27 = 47/48 * 27/94 = 1/16 * 9/2 = 9/32

2) 9/32 - 13/16 = 9/32 - 26/32 = -17/32