a) ($$\frac{2}{9}$$ + $$\frac{1}{3}$$) · $$\frac{3}{4}$$             |Klammer zuerst; gleichnamig machen!
_{= ( + ) ·
= ·
=
=}




b) ($$\frac{1}{4}$$ · $$\frac{2}{3}$$ + $$\frac{5}{3}$$) - $$\frac{8}{5}$$ · $$\frac{5}{12}$$                       |Punkt- vor Strich in der Klammer

_{= ( + ) -
= ( + ) -
= ( + ) -
= -
=
=}




c) ($$\frac{1}{4}$$ : $$\frac{1}{8}$$ + $$\frac{3}{4}$$ · $$\frac{2}{3}$$) - $$\frac{1}{4}$$                                  |Punkt-vor Strich in der Klammer

_{= ( · + ) -
= ( + ) -
= ( + ) -
= -
=
=
= 2}