Question

помогите решить
3 512-45+3160=
8 715-5 34+6=

Answer 1

3 5/12-4/5+31/60=41/12-4/5+31/60=205/60-48/60+31/60=188/60=3 8/60=3 4/30

8 7/15-5 3/4+6=127/15-23/4+6=508/60-345/60+120/60=283/60=4 33/60= 4 11/20