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1
4. Oblicza
5/7+1/7
4/9+1 3/9
5 1/8+3 2/8
3 3/5+6 2/8​


Odpowiedź :

Odpowiedź:

5/7 + 1/7 = 6/7

4/9 + 1 i 3/9 = 1 i 7/9

5 i 1/8 + 3 i 2/8 = 8 i 3/8

3 i 3/5 + 6 i 2/8 = 3 i 24/40 + 6 i 10/40 = 9 i 34/40 = 9 i 17/20