a simplifica = a imparti si sus si jos cu acelasi numar
este usor cand descompunem numerele numai in numere prime
a) 156 ⁽² 78 ⁽² 39
-------- = --------- = --------
256 128 64
b) 2⁷ x 3⁵ 2² x 2⁵ x 3⁵
-------------------- = ------------------------ =
2⁵ x 3⁸ x 7 2⁵ x 3⁵ x 3³ x 7
simplificam cu 2⁵ x 3⁵
2² 4
= ----------------- = -----------
3³ x 7 63
c) 151515 3² x 5 x 7 x 13 x 37 ⁽ 3 x 7 x 13 x 37
------------ = ---------------------------- =
191919 3 x 7 x 13 x 19 x 37
3 x 5 15
= ---------- = -------------
19 19
