Question

срочно помогите дам 20 баллов​

Answer 1

Ответ:1) 5/19+7/19-4/19= 8/19

2) 7 5/7+ 6/7= 54/7 + 6/7 = 60/7

3) 1 - 9/13 = 13-9/13 = 4/13

4) 9 7/13 - 6 9/13= 124/13 - 87/13 = 37/13