Odpowiedzi

2009-09-10T20:19:25+02:00
4,125 +z + 4⅚+ 1⅞ = 4¼ +7.75
4⅛+4⅚+1⅞+z = 4 ¼+7 ¾
4 3/24+4 20/24+1 21/24+z = 12
9 44/24+z = 12
10 20/24+z = 12
10⅚+z = 12
z = 12-10⅚
z = 1⅙