Question

Oblicz:

5 i 7/9 + 4 i 2/3 =

9 i 6/11 - 5 i 2/3 =

4 i 1/2 + (7 i 2/5 - 3 i 1/10) =

8 - 4 i 5/7 =

13 i 1/3 +7 i 4/5 + 8 i 2/15 =

6 i 2/7 +4 i 3/7 - 5 i 1/5 =

Proszę ze sprowadzaniam do wspólnego mianownika :)

Answer 1

5 i 7/9 + 4 i 2/3=5 i 7/9 + 4 i 6/9=9 i 13/9=10 i 4/9

9 i 6/11 - 5 i 2/3=9 i 18/33 - 5 i 22/33= 4 i 4/33

4 i 1/2 + (7 i 2/5 - 3 i 1/10)=4 i 5/10 + (7 i 4/10 - 3 i 1/10)=4 i 5/10 + 4 i 3/10=8 i 8/10

8 - 4 i 5/7=7 i 7/7 - 4 i 5/7=3 i 2/7

13 i 1/3 + 7 i 4/5 +8 i 2/15=13 i 5/15 + 7 i 12/15 + 8 i 2/15=20 i 17/15 + 8 i 2/15=28 i 19/15

6 i 2/7 + 4 i 3/7 - 5 i 1/5=6 i 10/35 + 4 i 15/35 -5 i 7/35= 10 i 35/35 - 5 i 7/35=5 i 22/35