There is a chance I did the wrong method, but these are the steps I went through to simplify it:
11 + (4/5+3/4) - (9+(11/15+7/12))
11+(1 11/20) - (9+(1 57/180))
12 11/20 - 10 57/180
11:45.
12:45 pm
11:45.
(45 x 100) / 34 = 4500/34 = 132.35... Therefore, 45 is approximately 132.35 % of 34. This result should not be surprising even though it is greater than 100, since in the first place, 45>34 45 percent of 34 means you multiply 34 by 45%, or .45. 34*.45 = 15.3
34 out of 45 is 75.6%
No.
12/45 = 4/15
17a + 21a + 45 = 38a+ 45
12:45 and if you simplify it , it becomes 4:15
87
45/75 = 3/5
45/36 = 5/4