Question

выполните действия: 12 7/15-9 3/4+5 11/12

Answer 1

12 7/15-9 3/4+5 11/12=12 28/60- 9 45/60+ 5 55/60=17 83/60- 9 45/60=
8 38/60= 8 19/30

Answer 2

12 7/15 -9 3/4 +5 11/12=(12-9+5)+(7/15 -3/4 +11/12)=8+(7*4-3*15 +11*5)/60 = 8+(28-45+55)/60=8+38/60=8 19/30