3/10-2/15; 2/15+5/12; 3,25*50,6; вычислите

Question

3/10-2/15; 2/15+5/12; 3,25*50,6; вычислите

Answer 1

3/10-2/15=9/30-4/30=5/30=1/6
2/15+5/12=8/60+25/60=33/60=11/20
3,25*50,6=325/100*506/10=16445/100=164,45