Odpowiedzi

2009-11-01T18:20:42+01:00
(6i 2/5 - 5i 7/10):(8 i 1/3 - 1i4/5)= (32/5 - 57/10):(25/3 - 9/5) = 7/10:98/15 = 7/10 * 15/98 = 105/980 = 21/196 = 3/28
2009-11-01T18:21:05+01:00
(6i 2/5 - 5i 7/10):(8 i 1/3 - 1i4/5)=
(6i4/10-5i710):(8i5/15-1i12/15)=
(5i14/10-5i7/10):(7i20/15-1i12/15)=
7/10:8i8/15=
7/10:128/15=
7/10*15/128=21/256
2009-11-01T18:22:46+01:00
(6 i 4/10 - 5 i 7/10) : (8 i 5/15 - 1 i 12/15)
(64/10 - 57/19) : (125/15 - 27/15)
7/10 : 98/15
7/10 x 15/98 = 3/28