Odpowiedź:
1 3/4 * 1 1/7 - 3 : 4 1/2 = 7/4 * 8/7 - 3 : 9/2 = 1/1 * 2/1 - 3 * 2/9 =
= 2 - 1 * 2/3 = 2 - 2/3 = 1 3/3 - 2/3 = 1 1/3
1 5/7 * (2 3/4 - 1 2/3 : 4) = 12/7 * (11/4 - 5/3 : 4/1) = 12/7 * (11/4 - 5/3 * 1/4) =
= 12/7 * (11/4 - 5/12) = 12/7 * (33/12 - 5/12) = 12/7 * 28/12 = 1/1 * 4/1 = 4
Szczegółowe wyjaśnienie: