Question

a) 2 i 1/4 - 3 i 1/2 - 1 i 7/8
b) 4 i 1/6 - 2 i 2/3 - 3 i 1/2
c) 1 i 2/5 - 3 i 3/4 - 2 i 3/10
d) 2 i 1/2 - 3 i 3/5 - 4 i 2/3
e) 3 i 1/6 - 1 i 3/8 - 4 i 5/12
f) 4 i 2/3 - 2 i 5/7 - 3 i 1/2
g) 3 i 3/5 - (1 i 7/10 - 6 i 2/15)
h) 2 i 5/6 - (1 i 1/4 + 4 i 3/8)
i) 2 i 6/7 * ( - 14/15 ) - 3 1/3 * (-1 i 4/5)
j) - 5 i 1/3 * (- 1 i 1/2 ) + 5/8 : (-3 i 3/4)

(:) - podielić
(*) - razy

Answer 1

a) 2 i 1/4 - 3 i 1/2 - 1 i 7/8=

2 i 2/8 - 3 i 4/8 - 1 i 7/8 =

- 1 i 2/8 - 1 i 7 /8=

- 2 i 9/8 = - 3 i 1/8

b) 4 i 1/6 -  2 i 2/3 - 3 i 1/2 =

4 i 1/6 - 2 i 4/6 - 3 i 3/6 =

4 i 1/6 - 6 i 1/6= -2

c) 1 i 2/5 - 3 i 3/4 - 2 i 3/10 =

1 i 8/20 - 3 i 15/20 - 2 i 6/20 =

- 2 i 7/20 - 2 i 6/20 =

-2 i 13/20

d) 2 i 1/2 - 3 i 3/5 - 4 i 2/3 =

2 i 15/30 - 3 i 18/30 - 4 i 20/30 =

- 1 i 3/30 - 4 i 20/30 =

- 5 i 23/30

e) 3 i 1/6 - 1 i 3/8 - 4 i 5/12=

3 i 4/24 - 1 i 9/24 - 4 i 10/24 =

- 5 i 19/24 + 3 i 4/24 =

- 2 i 15/24 =  - 2 i 5/8

f) 4 i 2/3 - 2 i 5/7 - 3 i 1/2 =

 4 i 28/42 -  2 i 30/42 - 3 i 21/42=

4 i 28/42 - 5 i 51/42=

-1 i 23/42

g) 3 i 3/5 - (1 i 7/10 - 6 i 2/15) =

 3 i 3/5 -( 1 i 21/30 - 6 i 4/30)=

3 i 3/5-( ( 1 i 21/30 - 5 i 34/30)=

3 i 3/5 -( - 4 i 13/30)=

3 i 18/30 + 4 i 13/30 =

7 i 31/30 =

8 i 1/30

h) 2 i 5/6 - (1 i 1/4 + 4 i 3/8)=

2 i 5/6 -( 1 i 2/8 + 4 i 3/8)=

2 i 5/6 - 5 i 5/8=

2 i 20 / 24 - 5 i 15/24=

- 4 i 39/24 + 2 i 20/24 =

- 2 i 19/24

i) 2 i 6/7 * ( - 14/15 ) - 3 1/3 * (-1 i 4/5)=

20/7 * ( -14/15)  - 31/3 * ( - 9/5) =

- 8/3 + 93/5=

- 2 i 2/3 + 18 i 3/5 =

- 2 i 10/15 + 18 i  9/15 =

- 2 i 10/15 + 17 i 24/15 =

15 i 14/15

j) - 5 i 1/3 * (- 1 i 1/2 ) + 5/8 : (-3 i 3/4)=

- 16/3 * ( - 3/2)  + 5/8 * ( - 4/15)=

8  - 1/6=

7 i 6/6 - 1/6 =

7 i 5/6