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1.42/63= 14/21=2/3
2.8/28=2/14=1/7
3.30/75=6/15=2/5
4.12/54=6/27=2/9
5.42/56=21/28=3/4
6.30/50=3/5
7.27/63=3/7
8.30/80=3/8
9.56/70=8/10=4/5
10.16/36=4/9
11. 30/36= 5/6
12.20/28=5/7
zad.4
1.28/35=4/5
2.9/12=3/4
3.15/25= 3/5
4.10/15=2/3
5.6/16=3/8
1) 42/63= 14/21=2/3
2)8/28=2/14=1/7
3)30/75=6/15=2/5
4)12/54=6/27=2/9
5)42/56=21/28=3/4
6)30/50=3/5
7)27/63=3/7
8)30/80=3/8
9)56/70=8/10=4/5
10)16/36=4/9
11) 30/36= 5/6
12)20/28=5/7
zad4
1)28/35=4/5
2)9/12=3/4
3)15/25= 3/5
4)10/15=2/3
5)6/16=3/8
6)12/21=4/7