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1/2+1/3*9/5=? te rog sa ma ajutati dauncoroana​

Răspuns :

1/2 + 9/15 =

1/2 + 3/5 =

(1•5+3•2)/10 =

11/10

1/2 + 1/3*9/5 =

= 1/2 + 3/5

= (5 + 6)/10

= 11/10