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Cine imi poate rezolva si mie fractia 3a/12+a/6=a2/12?Sa se afle cifra a.

Răspuns :

[tex]\frac{3a}{12}+ \frac{a}{6}= \frac{3a}{12}+\frac{2*a}{12}= \frac{3a+2*a}{12}[/tex]

Daca a = 4 => [tex]\frac{34+2*4}{12}=\frac{34+8}{12}=\frac{42}{12}[/tex]

=> a = 4.