15 5/21 - 11 19/21 =

Question

15 5/21 - 11 19/21 = (15 - 11) + (5/21 - 19/21) = 4 - 14/21 = 3 + 21/21 - 14/21 = 3 7/21 = 3 1/3

Ответ: 3 1/3

Accepted Answer

15 5/21 - 11 19/21 = (15 - 11) + (5/21 - 19/21) = 4 - 14/21 = 3 + 21/21 - 14/21 = 3 7/21 = 3 1/3

Ответ: 3 1/3