Пошаговое объяснение:
5 4/13 – х = 4 5/13
x = 5 4/13 - 4 5/13
x = 4 17/13 - 4 5/13
x = 12/13
15/19 – 7/19 + 4/19 = 8/19 + 4/19 = 12/19
5 – 2 4/11 = 4 11/11 - 2 4/11 = 2 7/11
7 5/14 + 3 11/14 = 10 16/14 = 11 2/14 = 11 1/7
8 2/9 – 2 4/9 = 7 11/9 - 2 4/9 = 5 7/9
Пошаговое объяснение:
5 4/13 – х = 4 5/13
x = 5 4/13 - 4 5/13
x = 4 17/13 - 4 5/13
x = 12/13
15/19 – 7/19 + 4/19 = 8/19 + 4/19 = 12/19
5 – 2 4/11 = 4 11/11 - 2 4/11 = 2 7/11
7 5/14 + 3 11/14 = 10 16/14 = 11 2/14 = 11 1/7
8 2/9 – 2 4/9 = 7 11/9 - 2 4/9 = 5 7/9