Question

12 7/12- 4 5/12 - (20 3/4- 19 3/4) =

Answer 1

12 7/12- 4 5/12 - (20 3/4- 19 3/4) = 8 2/12 - 1=7 2/12=7 1/6

точно не знаю правильно или нет))

Answer 2

12  7/12 - 4  5/12 - ( 20 3/4-19 3/4) = 7  1/6

1) 20 3/4 - 19 3/4 = 1

2) 12 7/12 - 4 5/12 = 8 2/12

3) 8 2/12 - 1= 7  2/12 = 7 целых 1/6

Answer 3

12 + 7/12 - 4 + 5/12 - (20 + 3/4 - 19 + 3/4)

First, let's simplify within the parentheses: (20 + 3/4) - (19 + 3/4) = 20 + 3/4 - 19 - 3/4 = (20 - 19) + (3/4 - 3/4) = 1 + 0 = 1

Now we can substitute this back into the original equation: 12 + 7/12 - 4 + 5/12 - 1

Next, let's combine like terms: 12 - 4 - 1 + 7/12 + 5/12 = 7 - 1 + 7/12 + 5/12 = 6 + 12/12 = 6 + 1 = 7

So, the answer is 7.