(1-3i)/(2+3i)+(2-3i)/(1+3i)
-1/(5+2i)
1/(2-i)
(1/i)+i
(3-2i)/(3+2i)
(7+4i)/i
(2-4i)/(1+i)
(2+3i)/(5+4i)
(22/41)+(7/41)i
(2/5)+(1/5)i
0
(5/13)-(12/13)i
(-161/130)-(207/130)i
(-5/29)+(2/29)i
4-7i