(3 1/3) -2 13 /16 *2 2/5

спасибо

3 1/3 - 2 13/16 * 2 2/5 = 3 1/3 - 45/16 * 12/5 = 10/3 - 27/4 =
                                      = 40/12 - 81/12 = - 41/12 = - 3 5/12;

1). 2 13/16 * 2 2/5 = 45/16 * 12/5 = 540/80 = 27/4
2) 3 1/3 - 27/4 = 10/3 - 27/4 = 40/12 - 81/12 = - 41/12 = - 3 5/12