Question

proszę o pomoc !

[(1\frac{4}{5})]^{5} x(1\frac{2}{3})^{5}] - [(\frac{25}{10})^{4} x (\frac{2}{5})^{4}] = ????

\frac{7}{5} :2,7 x (-\frac{1}{9})+(1\frac{1}{3})^{2} x \sqrt{2\frac{1}{4}} = ??

Answer 1

[ (1 4/5)⁵ * (1 2/3)⁵] - [(25/10)⁴ * (2/5)⁴ =
= [ (9/5)⁵ * ( 5/3)⁵] - [(25/10)⁴ * (2/5)⁴ =
= [59049/3125 * 3125/243] - [390625/10000 * 16/625] =
= 243/1 - 625/625 =
= 243 - 1 =
= 242

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7/5 : 2,7 * (-1/9) + (1 ⅓)² * √ 2¼ =
= 7/5 : 27/10 * (-1/9) + 16/9 * 3/2 =
= 7/5 * ( -10/3) + 8/3 =
= -14/3 + 8/3 =
= - 6/3 =
= -2

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