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Aduceti la cel mai mic numitor comun fractiile
a)8/9 ;9/7
b) 3/11 ; 9/4
DAU COROANA +PCT.+MULTUMESC+5STELE


Răspuns :

a) 56/63; 91/63 b)12/44; 99/44
Adus la acelsi numitor

9=3²
7=7
cmmdc=3²·7=63  [tex]a) \frac{56}{63} ----\frac{81}{63} [/tex]

11=11
4=2²
cmmdc=11·2²=11·4=44  [tex]b) \frac{12}{44} ----- \frac{99}{44} [/tex]