Odpowiedź :
a)
3 i 1/7 + 5 i 4/7 - 1 i 6/7 =
= 8 i 5/7 - 1 i 6/7 = 7 i 12/7 - 1 i 6/7 = 6 i 6/7
b)
4 - (5 i 1/3 - 2 i 2/3) =
= 4 - (4 i 4/3 - 2 i 2/3) = 4 - 2 i 2/3 = 1 i 1/3
Odpowiedź:
a) 3 1/7 +5 5/7 - 1 6/7= 8 5/7 - 1 6/7 = 8 5/7 - 13/7 = 6 6/7
b) 4 - ( 5 1/3 - 2 2/3 = 1 1/3