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calculati:(5 pe6+3 pe4)*24pe 19

Răspuns :

[tex]( \frac{5}{6} + \frac{3}{4} )* \frac{24}{19} [/tex]
aplifici prima fractie cu 2 si pe a doua cu 3
=> [tex]( \frac{10+9}{12} )* \frac{24}{19} [/tex]
= [tex] \frac{19}{12} * \frac{24}{19} [/tex]
= [tex] \frac{24}{12} [/tex]
= 2
[tex]( \frac{5}{6} + \frac{3}{4} ) * \frac{24}{19} \\ =( \frac{10}{12} + \frac{9}{12} )* \frac{24}{19} \\ = \frac{19}{12} * \frac{24}{19} \\ = \frac{24}{12} \\ =2 [/tex]