Вычислите
А) 4 - 1 3/7
Б) 2 1/2 + 2 2/3
В) 6 3/8 - 2 5/6

a) 4 - 1 3/7 = 3 7/7 - 1 3/7 = 2 4/7б) 2 1/2 + 2 2/3 = 2 3/6 + 2 4/6 = 4 7/6 = 5 1/6в) 6 3/8 - 2 5/6 = 5 33/24 - 2 20/24 = 3 13/24