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ex:5 dau coronita!!!

Ex5 Dau Coronita class=

Răspuns :

x/y==2/10=1/5(2/10 simplificat prin 2)⇒
⇒x=1K
y=5K⇒5y-2x=5*5K-2*K=25K-2K=23K

5x+2y=5*K+2*5K=5K+10K=15K
23K/15K=23/15(K se simplifica)