Question

Escreva as potências na forma de fração e,depois,simplifique-as.
a)(12%)²
b)(2,4)³
c)(1,5%)²

Answer 1

a) $0,12^{2} = 0,0144 = \frac{144}{10000} = \frac{72}{5000} = \frac{36}{2500} = \frac{18}{1250} = \frac{9}{625}$

b) $2,4^{3} = 13,824 = \frac{13824}{1000} = \frac{6912}{500} = \frac{3456}{250} = \frac{1728}{125}$

c) $0,015^{2} = 0,000225 = \frac{225}{1000000} = \frac{45}{200000} = \frac{9}{40000}$