(2 целых 1/5 + 14/15) x (-2 целых 1/2)
(2 1/5+14/15)*(-2 1/2)=(11/5+14/15)*(-2 1/2)=(33/15+14/15)*(-5/2)=47/15*(-5/2)=-47/6=-7 5/6
1)2 1/5 + 14/15 = 11/5 + 14/15 = (11 × 3 + 14 × 1)/15 = 33/15 + 14/15 = 47/15 = 3 2/15 2)3 2/15 × (- 2 1/2) = 47/15 × ( - 5/2) = - 47/6 = - 7 5/6 ОТВЕТ : - 7 5/6