3/14+5 1/2=?0,57-0,057=?2 целых1/15-1целая3/20

Question

3/14+5 1/2=?0,57-0,057=?
2 целых1/15-1целая3/20

Answer 1

3/14+5 1/2=3/14+5 7/14=5 10/14=5 5/7
0,570-0,057=0,513
2 1/15-1 3/20=2 4/60-1 9/60=55/60=11/12