Răspuns :
a+b=56
[tex] \frac{a}{b} = \frac{3}{4} \\ \frac{a+b}{b} = \frac{3+4}{4} \\ \frac{56}{b} = \frac{7}{4} \\ b=32\\ a=56-32=24[/tex]
[tex] \frac{a}{b} = \frac{3}{4} \\ \frac{a+b}{b} = \frac{3+4}{4} \\ \frac{56}{b} = \frac{7}{4} \\ b=32\\ a=56-32=24[/tex]