1)5/12:1,5=5/12*10/15=5/18 2)0,5:1,6=5/10*10/16=5/16 3)5/16*5=25/16=1(целых)9/16 4)5/18-25/16=80/288-450/288=-370/288=185/144
1)5/12:1,5=5/12*10/15=5/18 2)0,5:1,6=5/10*10/16=5/16 3)5/16*5=25/16=1 9/16 4)5/18-25/16=80/288-450/288=-370/288=185/144