Ответ:
a) 4/7 - 3/14 = 8/14 - 3/14 = 5/14.
б) 5/14 * 2 1/3 = 5/14 * 7/3 = 35/42 = 5/6.
в) 3 - 2 7/10 = 3 - 27/10 = 30/10 - 27/10 = 3/10.
г) 40 : 5/8 = 40 * 8/5 = 320/5 = 64.
б) 5/14 * 2 1/3 = 5/14 * 7/3 = 35/42 = 5/6.
в) 3 - 2 7/10 = 3 - 27/10 = 30/10 - 27/10 = 3/10.
г) 40 : 5/8 = 40 * 8/5 = 320/5 = 64.
