Odpowiedzi

2009-04-21T20:57:48+02:00
7 1/2 : 1,8 + 2 2/3 * (0,75 - 1/2) =
15/2*(5/9) + 2 2/3 *(0,75-0,5)=
75/18+8/3*(1/4)=
4 3/18 + 2/3=
4 1/6 + 4/6= 4 5/6
2009-04-21T21:01:08+02:00
15/2 : 9/5 + 8/3 * (3/4 - 1/2) = 15/2 : 9/5 + 8/3 * 1/4 = 15/2 * 5/9 + 2/3 = 75/18 + 2/3 = 25/6 + 4/6 = 29/6 = 4 5/6