Даю 25 баллов!!!примеры д и е пожалуйста))
(-1 1/2 - 1 1/7) *14=-37 - 1 1/2-1 1/7 = - 3/2 - 8/7 =(-3 * 7 - 8 * 2)/14 = (-21-16)/14 = - 37/14 = - 2 9/14 - 2 9/14* 14 = - 37/14 × 14/1 = - 37 (2/5-3/4)*20=-7 2/5 - 3/4 =(2* 4 - 3 *5)/20 = 8/20 - 15/20 = - 7/20 -7/20*20=-7