Sprowadź ułamki do wspólnego mianownika :1 3/10 i 1/5 , 2/3 i 1/5 , 4/7 i 1/2 , 4 3/7 i 2 2/3 , 4 1/4 i 2 2/3 , 4 1/4 i 2 2/3 , 2/5 i 4/10 i 1/2 , 1/3 i 2/5 i 1/15 , 5/20 i 1/24 i 5/6 ,
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3/10 i 2/10
10/15 i 3/15
8/14 i 7/14
4 9/21 i 2 14/21
4 3/12 i 2 8/12
4/10 i 4/10 i 5/10
5/15 i 6/15 i 1/15
30/120 i 5/120 i 100/120
13 /10 - 1 /5 = 13/10 i 2/10
2/3 i 1/5 = 10 /15 i 3 /15
4/7 i 1 /2= 8/14 i 7/14
31 /7 i 8 /3 = 93 /21 i 56 /21
17/4 i 8/3 = 41/12 i 32/12
2/5 i 4 /10 i 1 /2 = 4/10 i 4/10 i 5/10
1/3 i 2 /5 i 1/15 = 5/15 i 6/15 i 1/15
5/20 i 1/24 i 5/6 = 120 /480 i 20 /480 i 400/480 = 6/24 i 1/24 i 20/24
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