9 целых 5/13 - (7 целых 6/13 - у)= 2 целых 3/13

Question

9 целых 5/13 - (7 целых 6/13 - у)= 2 целых 3/13

Answer 1

9 5/13-(7 6/13-у)= 2 3/13
7 6/13- у=9 5/13- 2 3/13
7 6/13-у= 7 2/13
у= 7 6/13- 7 2/13
у= 4/13