Odpowiedź:
a)
-2 3/4 * 2 1/2 = -11/4 * 5/2 = -55/8 = -6 7/8
b)
-7 1/5 : (-4 1/5) = -36/5 : (-21/5) = 36/5 * 5/21 = 12/7 = 1 5/7
c)
-2,5 * (-4,08) = 10,2
d)
0,028 : (-0,07) = -0,4
e)
3 2/5 : 1,2 + 1 2/3 * 3 3/5 = 17/5 : 12/10 + 5/3 * 18/5 = 17/5 : 6/5 + 6 =
= 17/5 * 5/6 + 6 = 17/6 + 6 = 2 5/6 + 6 = 8 5/6
f)
3 1/6 + (-6,4) - (-4 1/3) = 3 1/6 + 4 2/6 - 6,4 = 7 3/6 - 6,4 = 7,5 - 6,4 = 1,1
Szczegółowe wyjaśnienie:
