Question

выполните действие
2/9+5/8
17/20-5/12
11/15-3/10+1/45

Answer 1

2/9+5/8=16/72+45/72=61/72
17/20-5/12=51/60-25/60=26/60
11/15-3/10+1/45=66/90-27/90+2/90=39/90+2/90=41/90