Odpowiedź:
a) 8 * ( 5/6-2/6) = 8 * 3/6= 8/1 * 3/6= 12/3= 4
b) 14 2/3 -6 * 2 1/3= 14 2/3 -6 * 7/3= 14 2/3 -2* 7= 14 2/3 - 14 = 2/3
c) 4 * ( 1/8 + 4/8) - 2 * 3/8 = 4 * 5/8 - 2 * 3/8 = 4/1 * 5/8 = 5/2 - 2/1 * 3/8 = 5/2 - 3/4 = 10/4 - 3/4 = 7/4 = 1 3/4
d) 5 3/4 - 1/4 * ( 6 2/7 - 3 2/7 )= 5 3/4 - 1/4 * 3 = 5 3/4 - 1/4 * 3/1 = 5 3/4 - 3/4 = 5
Szczegółowe wyjaśnienie:
