Question

4 supra 19 × (1 supra 3+ 1 supra 4)

Answer 1

4/19x(1/3+1/4) aducem la acelasi numitor in paranteza
4/19x[(4+3):12]=
4/19x7/12=7/57
Sper ca te-am ajutat!!

Answer 2

$\frac{4}{19}(\frac{1}{3}+\frac{1}{4})=\frac{4}{19}*\frac{4+3}{12}=\frac{4*7}{12*19}=\frac{28}{228}=\frac{14}{114}=\frac{7}{57}$