Oblicz . ps : to ułamki . 6 7 2 _ - _ + _ = 5 15 3 1 2 5 1 __ - __ +2 _ = 4 3 6 10 4 2 7 __ + 5 __ - 3 _ = 35 7 5 13 17 4 1 __ + __1 __= 25 25 5 Rozpiszcie mi to plx . :)

6 7 2 _ - _ + _ =35/15=2 i 5/15= 2 i 1/3 5 15 3 1 2 5 1 __ - __ +2 _ = 17/12 4 3 6 10 4 2 7 __ + 5 __ - 3 _ = 9 i 16/35 35 7 5 13 17 4 1 __ + __1 __=4 25 25 5

Oblicz . ps : to ułamki . 6 7 2 _ - _ + _ = 5 15 3 6/5-7/15+2/3=18/15-7/15+10/15=21/15 1 2 5 1 __ - __ +2 _ = 4 3 6 1i1/4-2/3-2 i 5/6=1 i 3/12-8/12-2 i 10/12= =1 i 3/12 - 3 i 18/12=-2 i 15/12=-3 i 3/12=-3i 1/4 10 4 2 7 __ + 5 __ - 3 _ = 35 7 5 7 i10/35 + 5 i 4/7 - 3 i 2/5= =7 i10/35 + 5 i 20/35 - 3 i 14/35=12 i 30/35-3 i 14/35=9 i 16/35 13 17 4 1 __ + __1 __= 25 25 5 1 i 13/25+17/25+1i 4/5= =1 i 30/25 + 1 i 20/25= =2 i 50/25= =3