Question

1si 1supra 2+2si 1supra 3-3 cu cat este egal

Answer 1

$1 \frac{1}{2}+2 \frac{1}{3}-3= \frac{1*2+1}{2}+ \frac{2*3+1}{3}-3= \frac{3}{2}+ \frac{7}{3}-3= \frac{3*3+7*2-18}{6}= \\ \frac{9+14-18}{6}= \frac{23-18}{6}= \frac{5}{6}$