Ответ:

  1. \(\left(\frac{2}{47}-\frac{3}{53}\right):0,2=\left(\frac{106-141}{249}\right):\frac{1}{5}=-\frac{35}{249}\cdot5=-\frac{175}{249}\).
  2. \(\frac{1-10^{-4}}{99}:\frac{0,16}{25}=\frac{\frac{9999}{10000}}{99}:\frac{4}{625}=\frac{101}{10000}\cdot\frac{625}{4}=\frac{101}{64}\).
  3. \(0,3^4-0,08^2-\frac{1}{125}+\frac{3}{25}-\frac{3}{5}+1=0,0081-0,0064-0,008+0,12-0,6+1=0,5137\).

Ответ: 1) \(-\frac{175}{249}\); 2) \(\frac{101}{64}\); 3) 0,5137.