Prosze o pomoc! Odejmowanie ulamkow o jednakowych mianownikach: 4 i jedna trzecia-3 i dwie trzecie=? 9 i dwie osme-2 i cztery osme(8)=? 10-7 i dwie osme(8)=? 5 i cztery osme(8)-3 i piec (5) osmych=? 6 i dwie trzecie-6 i dwie trzecie=? 5 i dwie osme

4 i 1/3 - 2 i 2/3= 3 i 4/3 - 2 i 2/3 = 1 i 2/3 9 i 2/8 - 2 i 4/8 = 8 i 10/8 - 2 i 4/8 = 6 i 6/8 = 6 i 3/4 10 - 7 i 2/8 = 9 i 8/8 - 7 i 2/8 = 2 i 6/8 = 2 i 3/4 5 i 4/8 - 3 i 5/8 = 4 i 12/8 - 3 i 5/8 = 1 i 7/8 6 i 2/3 - 6 i 2/3 = 0 5 i 2/8 - 2 i 3/8 = 4 i 10/8 - 2 i 3/8 = 2 i 7/8 8 - 4 i 2/5 = 7 i 5/5 - 4 i 2/5= 3 i 3/5 9 i 2/5 - 8 i 2/5 = 1 10 - 6 i 4/5=  9 i 5/5 - 6 i 4/5 = 3 i 1/5

4 i 1/3 - 3 i 2/3 = 3 i 4/3 - 3 i 2/3 = 2/3 9 i 2/8 - 2 i 4/8 = 8 i 10/8 - 2 i 4/8 = 6 i 6/8 = 6 i 3/4 10 - 7 i 2/8 = 9 i 8/8 - 7 i 2/8 = 2 i 6/8 = 2 i 3/4 5 i 4/8 - 3 i 5/8 = 4 i 12/8 - 3 i 5/8 = 1 i 7/8 6 i 2/3 - 6 i 2/3 = 0 5 i 2/8 - 2 i 3/8 = 4 i 10/8 - 2 i 3/8 = 2 i 7/8 8 - 4 i 2/5 = 7 i 5/5 - 4 i 2/5 = 3 i 3.5 9 i 2/5 - 8 i 2/5 = 1 10 - 6 i 4/5 = 9 i 5/5 = 6 i 4/5 = 3 i 1/5