Muunna sekaluvut ensin murtoluvuksi ja laske.

a. [[$1\dfrac{1}{3}$]] · [[$\dfrac{1}{5}$]] = · = =

b. [[$\dfrac{1}{4}$]] · [[$1\dfrac{4}{5}$]] = · = =

c. [[$1\dfrac{1}{6}$]] · [[$\dfrac{2}{3}$]] = · = =

d. [[$\dfrac{1}{3}$]] · [[$2\dfrac{1}{2}$]] = · = =

e. [[$1\dfrac{1}{2}$]] · [[$\dfrac{1}{3}$]] = · = = (? =

f. [[$1\dfrac{1}{3}$]] · [[$\dfrac{4}{5}$]] = · = = = ? ?