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5 Calculează, pe rând, fracţiile: ​ dau coroana!♡ repedeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee... vă rog.​

5 Calculează Pe Rând Fracţiile Dau Coroana Repedeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee Vă Rog class=

Răspuns :

a) 30:2=15 60:2=30 90:2=45

30:3=10 60:3=20 90:3=30

30:10=3 60:10=6 90:10=9

b) 40:4=10 20:4=5 80:4=20

40:2=20 20:2=10 80:2=40

40:10=4 20:10=2 80:10=8