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pomóżcie 6/7-5/7=???= 11/15-3/15= 7\9-5/9=???= 2 3/5-1/5=???= 5 1/2-1/2+???= 4 7/13-2=???= 5 2\3-2 1/3=???= 7 4/7- 2 1/7=???= 6 7/8-3 5/8=???=

Odpowiedź :

6/7 - 5/7 = 1/7

11/15 - 3/15 = 8/15

7/9 - 5/9 = 2/9

2 3/5 - 1/5 = 2 i 2/5

5 1/2 - 1/2 = 5

4 7/13 - 2 = 2 i 7/13

5 2/3 - 2 1/3 = 3 i 1/3

7 4/7 - 2 1/7 = 5 i 3/7

6 7/8 - 3 5/8 = 3 i 2/8 = 3 i 1/4

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