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Aratati ca fractia [tex] \frac{3^{3}+3^4+3^5 }{5^5+5^7} se simplifica prin 13

Multumesc anticipat


Răspuns :

3³(1+3+3²)/ 5⁵(1+5²)=

3³* (1+3+9)/ 5⁵ (1+25)=

3³ *13/ 5⁵ *26  se simplifica prin 13 si da

3³/5⁵*2