Question

Determinati fractia a pe b stind ca este echivalenta cu vractia 2 pe 3 si a plus b =10

Answer 1

$\frac{a}{b} = \frac{2}{3} \\ \frac{a}{b} = \frac{2x}{3x} \\ 2x+3x=10 \\ x=10:5 \\ x=2 \\ \frac{a}{b} = \frac{2*2}{3*2} = \frac{4}{6} = \frac{2}{3}$