Question

cum se rezolva ecuatia 3 supra 4 plus 3 supra 5

Answer 1

$\frac{5X3}{20} + \frac{4X3}{20} = \frac{15+12}{20} = \frac{27}{20} =1,35$

Answer 2

$\displaystyle \frac{3}{4} + \frac{3}{5} = \frac{15}{20} + \frac{12}{20} = \frac{27}{20}$