Odpowiedź:
Poziom D
A) 4 - 7/15 = 60/15 - 7/15 = 53/15 = 3 8/15
B) 6 - 5/12 = 72/12 - 5/12 = 67/12 = 5 7/12
C) 2 - 4/7 = 14/7 - 4/7 = 10/7 = 1 3/7
D) 7 - 2/5 = 35/5 - 2/5 = 33/5 = 6 3/5
Poziom E
A) 14 1/6 - 5 2/6 = 13 7/6 - 5 2/6= 8 5/6
B) 9 2/7 - 3 5/7 = 8 9/7 - 3 5/7 = 5 4/7
C) 8 1/5 - 2 3/5 = 7 6/5 - 2 3/5 = 5 3/5
D) 12 2/19 - 5 12/19 = 11 21/19 - 5 12/19 = 6 9/18
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