Wykonaj działania na ułamkach pamiętając o kolejności wykonywania działań:
1. 10 i 1/6 - (12 i 3/4 - 7 i 5/6) - 3 i 1/2 =
2. 1 i 3/4 + (99 i 7/20 - 89 i 2/5 ) - 1 i 1/2
3. 5 i 3/10 - 2 i 4/5 - 1 i 3/4 =
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1.
61/6 - (51/4 - 47/6) - 7/2= 61/6 - (153/12 - 94/12) - 7/2 = 61/6 - 59/12 - 7/2 =
= 122/12 - 59/12 - 42/12 = 63/12 - 42/12 = 21/12 = 1 i 11/12
2.
7/4 + (1987/20 - 447/5) - 3/2 = 7/4 + (1987/20 - 1788/20) - 3/2 = 7/4 + 199/20 - 3/2 = 35/20 + 199/20 - 30/20 = 234/20 - 30/20 = 204/20 = 10 i 4/20
3.
53/10 - 14/5 - 7/4 = 106/20 - 56/20 - 35/20 = 15/20 = 3/4