2 целых 11/20 +4 целых 19/30

Question

2 целых 11/20 +4 целых 19/30

Answer 1

=51/20+139/30=153/60+278/60=431/60

Answer 2

2 11/20+4 19/30=2 33/60+4 38/60=6 71/60=7 11/60