[1/3-(-1/9)+5/12]×(-36) 19 and 15 / 16 × (- 8) (1 and 1 / 2) × (- 1 and 1 / 3) × (- 1 and 1 / 4) × 1 and 1 / 5) × (- 1 and 1 / 6) × (- 1 and 1 / 7)

[1/3-(-1/9)+5/12]×(-36) 19 and 15 / 16 × (- 8) (1 and 1 / 2) × (- 1 and 1 / 3) × (- 1 and 1 / 4) × 1 and 1 / 5) × (- 1 and 1 / 6) × (- 1 and 1 / 7)

[1/3-(-1/9)+5/12]×(-36)=[1/3+1/9+5/12]x(-36)=(12+4+15)/36x(-36)=31/36x(-36)=-31
19 and 15 / 16 × (- 8) = (19x16 + 15) / 16x (- 8) = - 319 / 2 = - 159 and 1 / 2
(1 and 1 / 2) × (- 1 and 1 / 3) × (- 1 and 1 / 4) × 1 and 1 / 5) × (- 1 and 1 / 6) × (- 1 and 1 / 7)
=3/2x4/3x5/4x6/5x7/6x8/7=4