Question

Marind un numar rational cu 2
—
3

obtinem 5
—
2
Determinati numarul .

Answer 1

$\frac{a}{b}+ \frac{2}{3} = \frac{5}{2}$

$\frac{a}{b} = \frac{5}{2}-\frac{2}{3}$

$\frac{a}{b} = \frac{5*3-2*2}{6}$

$\frac{a}{b} = \frac{15-4}{6}$

$\frac{a}{b} = \frac{11}{6}$