Αναγωγή στην κλασματική μονάδα

http://www.daskalosa.eu/maths_e_ergasies/%CE%9C%CE%B1%CE%B8%CE%B7%CE%BC%CE%B1%CF%84%CE%B9%CE%BA%CE%AC_%CE%95_%CE%BA%CE%B5%CF%8621_%CE%91%CE%BD%CE%B1%CE%B3%CF%89%CE%B3%CE%AE_%CF%83%CF%84%CE%B7%CE%BD_%CE%BA%CE%BB%CE%B1%CF%83%CE%BC%CE%B1%CF%84%CE%B9%CE%BA%CE%AE_%CE%BC%CE%BF%CE%BD%CE%AC%CE%B4%CE%B1.pdf