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Oblicz 2/3 + 2/5=.....
3/4-2/11=.....
2 1/3+ 1 1/8=.....
3 1/7-2 1/2=...​


Odpowiedź :

Odpowiedź:

2/3 + 2/5 = 10/15 + 6/15 = 16/15 = 1 i 1/15

3/4 - 2/11 = 33/44 - 8/44 = 25/44

2 i 1/3 + 1 i 1/8 = 2 i 8/24 + 1 i 3/24 = 3 i 11/24

3 i 1/7 - 2 i 1/2 = 3 i 2/14 - 2 i 7/14 = 2 i 16/14 - 2 i 7/14 = 9/14