19557\frac{19^5}{5^7}57195 = ....
(195\frac{19}{5}519)5 ×\times× 5-2
197\frac{19}{7}719
(19×\times×5) - (5×\times×7)
semua salah
Untuk setiap a, p, q bilangan bulat, berlaku:
(ap)q = ap×\times×q
ap ×\times× aq = ap+q
anbn=(ab)n\frac{a^n}{b^n}=\left(\frac{a}{b}\right)^nbnan=(ba)n
1an=a−n\frac{1}{a^n}=a^{-n}an1=a−n
19557\frac{19^5}{5^7}57195
= 19555+2\frac{19^5}{5^{5+2}}55+2195
= 19555×52\frac{19^5}{5^5\times5^2}55×52195
= 19555\frac{19^5}{5^5}55195×\times×152\frac{1}{5^2}521
= (195\frac{19}{5}519)5 ×\times× 5-2