Odpowiedzi

2010-01-03T21:56:11+01:00
(1½+2⅔):5⁵/₆-(3⅓-1¼):2¹/₁₂ =
4¹/₆ : 5⁵/₆ - 2¹/₁₂ : 2¹/₁₂ =
25/6 : 35/6 - 25/12 : 25/12 =
5/7 - 1 = - 2/7