2 minus 2/5 plus 1/2 minus 4 = -1.9
1 over 2
It is: 1/2
3 1/2
2 − 1/3 = 12/3
4/10 or 2/5
11/12 − 1/2 = 5/12
2-1/3= 1/3 or .33 repeating
2 and 4 over 6
When you are using non-standard definitions of "plus" and "minus", or of "equal".
Unfortunately, 2 over 2 minus 1 equals 5 over 6 is just a wrong answer! If it is 2 over 2, minus 1, the answer is that it equals zero. If it is 2, over 2 minus 1, the answer is that it equals 2.
2 and 5/6 - 1/6 = 2 and 4/6 or 2 and 2/3