Laske seuraavat vähennyslaskut. Muunna sekaluvut ensin murtoluvuksi.

a. [[$2 \dfrac{1}{4} - 1 \dfrac{3}{4}$]] = – =

b. [[$2 \dfrac{3}{5} - 1 \dfrac{4}{5}$]] = – =

c. [[$2 \dfrac{1}{3} - 1 \dfrac{2}{3}$]] = – =

d. [[$2 \dfrac{2}{6} - 1 \dfrac{4}{6}$]] = – =

e. [[$2 \dfrac{3}{8} - 1 \dfrac{6}{8}$]] = – =

f. [[$2 \dfrac{3}{9} - 1 \dfrac{8}{9}$]] = – =