nie wiem czy jest dobrze bo robilem na szybko
a) -3/4 + (-8 5/8) + (-6 5/6) + (-1 3/8) = -18/24 + (-8 15/24) + (-6 20/24) + (-1 9/24) = -15 62/24 = -17 14/24 = -17 7/12
b) -14 1/2 + (-7 3/5) + 8 1/5 + (-6,3) = -14 5/10 + (-7 6/10) + 8 2/10 + (-6 3/10) = -19 12/10 = -20 2/10 = -20 1/5
c) 20 + (-16,3) + 4 1/3 + (-18 2/3) = 20 + (-16 9/30) + 4 10/30 + (-18 20/30) = -10 19/30
d) -0,6 + 2 3/8 + (-7 5/8) + (-1/2) + 0= - 23/40 + 2 15/40 + (-7 25/40) +(-20/40) = -5 69/40 = -6 29/40
mam nadzieje ze pomoglem :)
