3 5/12-4/5+31/60=помогите решить!

Question

3 5/12-4/5+31/60=помогите решить!

Answer 1

=  3  25/60-48/60+31/60= 3  8/60= 3  2/15

Answer 2

=41/12-4/5+31/60=205-48+31/60=188/60=3.1