7, 2*2 1/12 - (15 1/5 - 11 1/27, 4 1/12 - (75/5 - 11/27, 4 1/12 - (15 - 5.57, 4 1/12 - 9.7, 4 1/12 - 9 6/17, 4 1/12 - 9 3/7, 4 1/12 - 8 6/17, 4 1/12 - 8 1/7, 4 1/12 - 8 6/17, 4 1/12 - -0, 15 1/12
Therefore, the result is approximately -0.84.
7, 2*2 1/12 - (15 1/5 - 11 1/2
7, 4 1/12 - (75/5 - 11/2
7, 4 1/12 - (15 - 5.5
7, 4 1/12 - 9.
7, 4 1/12 - 9 6/1
7, 4 1/12 - 9 3/
7, 4 1/12 - 8 6/1
7, 4 1/12 - 8 1/
7, 4 1/12 - 8 6/1
7, 4 1/12 -
-0, 15 1/12
Therefore, the result is approximately -0.84.