Complex sentence: However, "every" terminating decimal "also" has a second representation as a repeating decimal, obtained by decreasing the final non-zero digit by one and appending an infinitely-repeating sequence of nines, a non-obvious phenomenon that many find puzzling.
Split into simpler sentences: However, "every" terminating decimal "also" has a second representation as a repeating decimal. This is obtained by decreasing the final non-zero digit by one and appending an infinitely-repeating sequence of nines, a non-obvious phenomenon that many find puzzling.