Question

Oblicz:

2 i 2/8 + 1 i 3/4 - 1 i 1/2
1 i 1/7 x 1 i 3/4
1 i 1/3 : 12
2 i 5/6 : 3 i 2/5 x 1 i 1/5
5,75 + 1 i 3/4
3 i 1/6 - 1,4
1,04 x 3 i 1/8
2 i 1/3 : 3,2

Answer 1

2 i 2/8 + 1 i 3/4 - 1 i 1/2 = 18/8 + 7/4 - 3/2 = 18/8 +14/8 - 12/8 = 44/8 = 5 i 1/2

1 i 1/7 x 1 i 3/4 = 8/7  * 7/4 = 2

1 i 1/3 : 12 = 4/3 * 1/12 = 1/9

2 i 5/6 : 3 i 2/5 x 1 i 1/5 = 17/6 * 5/17 * 6/5 = 5/6 * 6/5 = 1

5,75 + 1 i 3/4  = 7 i 1/2

3 i 1/6 - 1,4 = 1 i 23/30

1,04 x 3 i 1/8 = 3 i 1/3

2 i 1/3 : 3,2 = 35/48