Г) 2целых 2/9 * 3,7-2целых 2/9*(-5,3) д) (- 1 целая 1/2 - 1целая 1/7)*14 е) (2/5-3/4)*20

 2   2/9 * 3,7-2  2/9*(-5,3)=2   2/9(3,7+5,3)=20/9 *9=20

(- 1 целая 1/2 - 1целая 1/7)*14=-2 9/14 *14=-37/14*14=-37

(2/5-3/4)*20=-7/20 *20=-7

2 2/9×3,7-2 2/9×(-5,3)=2 2/9×(3,7-(-5,3))=2 2/9×(3,7+5,3)=
=2 2/9×9=20/9×9=20/1×1=20

(-1 1/2-1 1/7)×14=(-1 7/14-1 2/14)×14=-2 9/14×14=-37/14×14=-37

(2/5-3/4)×20=(8/20-15/20)×20=-7/20×20=-7