(2 2/3 - 2 2/9) * (2 - 1 1/2) =

(2 2/3 - 2 2/9) × (2 - 11/2)=–1,6 1)2и2/3-2и2/9=2и6/9-2и2/9=4/9 2)2-11/2=-7/2 3)-7/2×4/9=–1и6/10