Question

aduceti fractia la acelasi numitor: 210/735 si 2185/665

Answer 1

Mai intai aflam  cmmmc al numitorilor.

Descompunem numitorii in produs de factori primi

735 = 3 × 5 × 7²
665 = 5 × 7 × 19

cmmmc (735; 665) = 3 × 5 × 7² × 19 = 13.965

210/735   si 2185/665

se amplifica prima fractie cu 19 si cea de a doua cu 3×7=21

$^{19)} \frac{210}{725} = \frac{3990}{13965} \\ \\ ^{21)} \frac{2185}{665} = \frac{45885}{13965}$