Oblicz.
j) 1 6/8 - 3/8 =
k) -4 1/2 - 4/6 =
l) 1 1/3 - (-1/4)=
ł) - 4/9- (-1/4) =
m) -1/7+ (-5/21)=
n) 1 1/6- (-1/4)=
o)5/12-(-3/5)=

Daje najj