Question

Вычислите: 5/9-4/9; 11/21-9/21; 5/19-1/19; 7/8-6/8; 12/7-5-7; 9/16-9/16; 24/25-6/25; 68/81-51/81.

Answer 1

Хз прости но точно в последнем 3 точно

Answer 2

5/9 - 4/9 = 1/9 11/21 - 9/21 = 2/21 5/19 - 1/19 = 4/19 7/8 - 6/8 = 1/8 12/7 - 5/7 = 5/7 9/16 - 9/16 = 0 24/25 - 6/25 = 18/25 68/81 - 51/81 = 17/81

Therefore, the answers are: 1/9, 2/21, 4/19, 1/8, 5/7, 0, 18/25, 17/81.