Odpowiedź:
a) (0,3 +0,75 *2/3):10 =(3/10 + 3/4 * 2/3) : 10 = (3/10 + 1/2) : 10 = (3/10 + 5/10) : 10 = 8/10 * 1/10 = 8/100 = 0,08
b) (6- 3 1/3) * (4,5-3,6) = 8/3 * 9/10 = 4/1 * 3/5 = 12/5 = 2 2/5
c) 27-2*7/7+4*5 : 1 4/9 = 27 - 2 + 20 * 9/13 = 25 + 13 11/13 = 38 11/13
d) 3,1 - 1,9/0,4 * 2/3 +2/5 - 0,1/3,6 : 0,6 = 31/10 - 19/4 * 2/3 + 2/5 - 1/36 * 5/3 = 31/10 - 19/6 + 2/5 - 5/108 = 1674/540 - 1710/540 + 216/540 - 25/540 = 155/540 = 31/108
Szczegółowe wyjaśnienie:
