Question

Oblicz:
a) 1 i 5/12 - 9/8 - 2 i 5/6 =
b) 6 i 3/4 - 2 i 2/3 - 3 i 1/6 =
c) 2 i 2/9 - 3 i 5/6 + 5 i 1/3
d) 2 i 2/9 + 1 i 5/12 - 7/8 =

Answer 1

a) 1  i 5/12  -  9/8 - 2 i 5/6 =
17/12 - 9/8 - 17/6  =  34/24 - 27/24 - 68/24 = -61/24 = -2 13/24

b) 6 i 3/4 - 2 i 2/3 - 3 i 1/6 =
27/4 - 8/3 - 19/6 = 81/12 - 32/12 - 38/12 = 11/12

c) 2 i 2/9 - 3 i 5/6  +  5 i 1/3 =
20/9 - 23/6 + 16/3 = 40/18 - 69/18 + 96/18 = 67/18 = 3 13/18

d) 2 i 2/9 + 1 i 5/12 - 7/8 =
20/9 + 17/12 - 7/8 = 160/72 + 102/72 - 63/72 = 199/72 = 2 55/72