7. Uzupełnij:
(3 (2/5)) + ______ = 4 (2 (5/7)) + ______ = 8 (6 (2/9)) + (2 (5/9)) + _____ = 10


Odpowiedź :

Odpowiedź:

(3 (2/5)) + (7 (16/25)) =4 (2 (5/7)) + (- (20/7) =8 (6 (2/9))+(2 (5/9))+(-42 (1/3)) =10