Odpowiedź:
5.
a) - 3/4 + (-8 5/8) + (- 6 5/6) + (- 1 3/8) = - 3/4 + (- 9 8/8) - 6 5/6 =
= - 9/12 - 10 - 6 10/12 = - 16 19/12 = - 17 5/12
b) - 14 1/2 + (-7 3/5) + 8 1/5 + (- 6,3) = - 14 5/10 - 7 6/10 + 8 2/10 - 6 3/10 =
= - 27 14/10 + 8 2/10 = - 19 12/10 = - 20 2/10 = - 20 1/5
c) 20 + (- 16,3) + 4 1/3 + (- 18 2/3) = 3,7 + 4 1/3 - 18 2/3 =
= 3 7/10 - 14 1/3 = 3 21/30 - 14 10/30 = 3 21/30 - 13 40/30 = - 10 19/30
d) - 0,6 + 2 3/8 + (- 7 5/8) + (- 1/2) + 0 = - 6/10 - 5 2/8 - 1/2 =
= - 24/40 - 5 10/40 - 20/40 = - 5 54/40 = - 6 14/40 = - 6 7/20
Szczegółowe wyjaśnienie:
