Odpowiedź:
14 : 1/2 - 14/3 * 9/7 = 14 * 2/1 - 2/1 * 3/1 = 28 - 6 = 22
61/3 * (2/3 + 3/4) = 61/3 * (8/12 + 9/12) = 61/3 * 17/12 = 1037/36 = 28 29/36
(2/3 + 5/6) : 3 - (7/9 - 1/2) = (4/6 + 5/6) : 3 - (14/18 - 9/18) =
= 9/6 * 1/3 - (- 5/18) = 9/18 + 5/18 = 14/18 = 7/9
27/12 - 2/3 : 8 + 7/8 = 27/12 - 2/3 * 1/8 + 7/8 = 27/12 - 2/24 + 7/8 =
= 54/24 - 2/24 + 21/24 = 73/24 = 3 1/24
14/5 - 2/5 : 5/4 = 14/5 - 2/5 * 4/5 = 14/5 - 8/25 = 70/25 - 8/25 =
= 62/25 = 2 12/25
Szczegółowe wyjaśnienie:
