Odpowiedź:
b) = 5 10/15 - 2 3/15 = 3 7/15
c) = 4 3/10 - 2 2/10 = 2 1/10
e) = 7 9/12 - 5 4/12 = 2 5/12
h) = 4 10/14 - 1 7/14 = 3 3/14
i) = 2 15/35 - 14/35 = 2 1/35
b) = (1/10 + 8/10) + 2 = 2 9/10
c) = 3 15/20 + 4 12/20 = 7 27/20 = 8 7/20
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Odpowiedź:
b) = 5 10/15 - 2 3/15 = 3 7/15
c) = 4 3/10 - 2 2/10 = 2 1/10
e) = 7 9/12 - 5 4/12 = 2 5/12
h) = 4 10/14 - 1 7/14 = 3 3/14
i) = 2 15/35 - 14/35 = 2 1/35
b) = (1/10 + 8/10) + 2 = 2 9/10
c) = 3 15/20 + 4 12/20 = 7 27/20 = 8 7/20