1) a) 1 - 2/7 = 7/7 - 2/7 = 5/7
б) 1 - 8/17 = 17/17 - 8/17 = 9/17
в) 1 - 5/23 = 23/23 - 5/23 = 18/23
г) 1 - 15/16 = 16/16 - 15/16 = 1/16
2) а) 7 - 3/11 = 77/11 - 3/11 = 74/11
б) 10 - 14/15 = 150/15 - 14/15 = 136/15
в) 16 - 3/8 = 128/8 - 3/8 = 125/8
г) 3 - 5/14 = 42/14 - 5/14 = 37/14
3) а) 8 - 2 5/7 = 56/7 - 19/7 = 37/7
б) 4 - 1 3/5 = 20/5 - 8/5 = 12/5
в) 7 - 4 9/10 = 70/10 - 49/10 = 21/10
г) 6 - 3 4/11 = 66/11 - 37/11 = 29/11
4) а) 8 10/13 - 2 = 114/13 - 26/13 = 88/13
б) 4 5/6 - 1 = 29/6 - 6/6 = 23/6
в) 10 1/3 - 7 = 31/3 - 21/3 = 10/3
г) 5 2/5 - 3 = 27/5 - 15/5 = 12/5
Объяснение:
1/1 - это дробь
х+ у = -2
2*2 - 5 = -1
2 + 5 = -2
4 - 5 = -1 (истина)
2 +5 = -2 (ложь)
ответ: нет.