Question

15 7/18+11 8/9+4/9+5/18,помогите пжл срочно

Answer 1

15 7/18+11 8/9+4/9+5/18 = 15 12/18 + 11 12/9 = 15 6/9 + 11 12/9 = 26 18/9 = 28