Question

(6 1/8•1 2/7-2 11/14•1 8/13)•1 3/5
помогите пожалуйста

Answer 1

1) 6 1/8 * 1 2/7 = 49/8 * 9/7 = 63/8

2) 2 11/14 * 1 8/13 = 39/14 * 21/13= 9/2

3) 63/8 - 9/2 = 63/8 - 36/8 = 27/8

4) 27/8 * 1 3/5 = 27/8 * 8/5 = 27/5 = 5,4