Решение:
1) \(0,2 = \frac{2}{10} = \frac{1}{5}\)
2) \(0,88 = \frac{88}{100} = \frac{22}{25}\)
3) \(0,64 = \frac{64}{100} = \frac{16}{25}\)
4) \(0,78 = \frac{78}{100} = \frac{39}{50}\)
5) \(0,256 = \frac{256}{1000} = \frac{32}{125}\)
6) \(0,3264 = \frac{3264}{10000} = \frac{204}{625}\)