Odpowiedź:
a) -2 1/5 + 3,3 = -2,2 + 3,3 = 1,1
b) 1 5/6 - 3 1/3 = 1 5/6 - 3 2/6 = -2 3/6 = -2 1/2
c) 4,3 - 7,5 = 3 13/10 - 7 5/10 = -4 8/10 = -4 4/5
d) -4,5 - 2 1/4 = -4 5/10 - 2 1/4 = -4 10/20 - 2 5/20 = -6 15/20 = -6 3/4
e) -3 1/6 - ( - 5 5/6) = -3 1/6 + 5 5/6 = -2 4/6
f) 7 1/3 + (-4 5/6) = 7 2/6 + (-4 5/6) = 6 8/6 + (-4 5/6) = 2 3/6 = 2 1/2
g) -5 4/7 + 7= 1 3/7
h) 1,23 - 9 = -7, 77
i) -6 - (-4 5/9) = -6 + 4 5/9 = 1 4/9
Proszę bardzo :D
