Odpowiedź:
a)⅖+⅕=⅗; 7/9+1/9=8/9
b)2 i 1/7+2/7=2 i 3/7; 5 i 7/10+ 1 i 1/19=6 i 8/10= 6⅘
c)3⅛+ 1 ⅜= 3 i 4/8=3½; 6 i 2/9+ 2 i 5/9= 8 i 7/9
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Odpowiedź:
a)⅖+⅕=⅗; 7/9+1/9=8/9
b)2 i 1/7+2/7=2 i 3/7; 5 i 7/10+ 1 i 1/19=6 i 8/10= 6⅘
c)3⅛+ 1 ⅜= 3 i 4/8=3½; 6 i 2/9+ 2 i 5/9= 8 i 7/9