rozwiąż: 1-1/4= 1-2/5= 12-5i7/3= 9i7/30-6= 6-3/4=

3/4 3/5 4⅔ 3i7/30 5¼

1-1/4=3/4 1-2/5=3/5 12-5i7/3=12-7i1/3=4i2/3 9i7/30-6=3 i 7/30 6-3/4= 5 i 1/4

1-1/4= 3/4 1-2/5= 3/5 12-5i7/3= 12-7i1/3= 4i2/3 9i7/30-6= 3i7/30 6-3/4= 5i1/4