Odpowiedź:
a) ( 3 i 3/4 +2 i 1/8) :5= ( 3 i 6/8 + 2 i 1/8):5= 5 i 7/8 :5=
= 47/8 *1/5= 47/40=1 i 7/40
b) 6 i 1/8 : 4 + 2 i 3/4= 49/8 *1/4 + 2 i 3/4 = 49/32 + 2 i 3/4=
= 1 i 17/32+ 2 i 24/32= 3 i 41/32= 4 i 9/32
c) 3 i 1/6 + 2 i 1/3 : 3= 3 i 1/6 + 7/3*1/3= 3 i 1/6 + 7/9= 3 i 3/18+ 14/18=
=3 i 17/18
d) ( 4 i 3/5 - 2 i 1/2 ) : 2= ( 4 i 6/10 -2 i 5/10) :2= 2 i 1/10 :2=
= 21/10 *1/2= 21/20= 1 i 1/20
Wyjaśnienie:
