Odpowiedzi

2009-11-03T18:17:09+01:00
Z1. 2/3+2/9=6/9+2/9=8/9
z2. 1i1/5+2i7/10= 6/5+27/10=12/10+27/10=39/10=3i9/10
z3. 2/5-1/10=4/10-1/10=3/10
z4. 5/3-5/6=10/6-5/6=5/6
2009-11-03T18:18:39+01:00
2/3+2/9= 6/9+ 2/9=8/9

1i1/5+2i7/10=6/5+27/10=12/10+27/10=39/10=3i9/10

2/5-1/10=4/10-1/10=3/10

5/3-5/6=10/6-5/6=5/6