κεφάλαιο 20 το κλάσμα ως ακριβές πηλίκο διαίρεσης

 http://daskalosa.eu/maths_st/st_maths_20_to_klasma_os_akribes_piliko_diairesis.html

http://daskalosa.eu/maths_st/maths_st_ergasies/%CE%A3%CE%A4_%CF%84%CE%AC%CE%BE%CE%B7-%CE%9C%CE%B1%CE%B8%CE%B7%CE%BC%CE%B1%CF%84%CE%B9%CE%BA%CE%AC-1%CE%B7_%CE%B5%CE%BD%CF%8C%CF%84%CE%B7%CF%84%CE%B1-%CE%BA%CE%B5%CF%86.20-%CF%84%CE%BF-%CE%BA%CE%BB%CE%AC%CF%83%CE%BC%CE%B1-%CF%89%CF%82-%CE%B1%CE%BA%CF%81%CE%B9%CE%B2%CE%AD%CF%82-%CF%80%CE%B7%CE%BB%CE%AF%CE%BA%CE%BF.pdf