сократите дробь и запишите их в виде десятичных дробей;12/15.21/35.12/30.45/50.18/60.56/80.9/12.21/60.54/180.102/24.135/60.639/300.
12/15=4/5=0.8
21/35=3/5=0.6
12/30=6/15=2/5=0.4
45/50=9/10=0.9
18/60=9/30=3/10=0.3
9/12=3/4=0.75
21/60=7/20=0.35
54/180=27/90=9/30=3/10=0.3
102/24=51/12=17/4=4.25
135/60=27/12=9/4=2.25
639/300=213/100=2.13