Question

8 i 1/2 - 1,75 - ( 1 i 3/4 + 1 i 2/3) =

4 i 5/6 + 2,5 - 3 i 2/3 + 5 i 1/12 =

Answer 1

8 i 1/2 - 1,75 - ( 1 i 3/4 + 1 i 2/3) =17/2-175/100-(7/4+5/3)=34/4-7/4-(21/12+20/12)=27/4-(41/12)=81/12-41/12=40/12=3 1/3

 

4 i 5/6 + 2,5 - 3 i 2/3 + 5 i 1/12 =29/6+25/10-11/3 + 61/12=290/60+150/60-220/60+305/60=745/60-220/60=525/60=105/12=8 9/12=8 3/4