Question

-12*3i7/15+3i1/2:5=

3i3/4:3/10-(-1i1/6):7/5=

2i3/4:(3/4-2i1/6)-1/2=

Answer 1

-12 * 3i7/15 + 3i1/2 : 5 =
= -12 * 52/15 + 7/2 * 1/5 = 
= -208/5 + 7/10 = 
= -416/10 + 7/10 = 
= -409/10 = 
= 40 i 9/10

3 i 3/4 : 3/10 - (-1 i 1/6) : 7/5 =
= 15/4 * 10/3 + 7/6 * 5/7 = 
= 25/2 + 5/6 = 
= 75/6 + 5/6 = 
= 80/6 = 
= 13 i 2/6 = 
= 13 i 1/3

2 i 3/4 : (3/4 - 2 i 1/6) - 1/2 =
= 11/4 : (3/4 - 13/6) - 1/2 =
= 11/4 : ( 9/12 - 26/12) - 1/2 = 
= 11/4 : (- 17/12) - 1/2 = 
= 11/4 * (-12/17) - 1/2 = 
= 33/17 - 1/2 = 
= 66/34 - 17/34 = 
= 49/34 = 
= 1 i 15/34

Answer 2

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