2 minus 2/5 plus 1/2 minus 4 = -1.9
7 over 18
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.
It is: 2/7 minus 5/8 is = -19/56
7/11 minus 2/5 is 13/55
3 minus 3/18 is 2 5/6
Well, darling, 17 over 18 minus 2 over 3 is the same as 17 times 3 minus 2 times 18, all over 18 times 3. So, that gives you 51 minus 36 over 54, which simplifies to 15 over 54, or 5 over 18. Math doesn't have to be a drag, honey!
7/18 - 5/18 = 2/18 = 1/9
4/-9 − 5/2 = -53/18 or -217/18
5 over 18
1/2 − 5/9 = -1/18
18/20 - 5/20 = 13/20
40/55 - 22/55 = 18/55
-7/9 - 5/10 = -7/9 - 1/2 = -14/18 - 9/18 = -23/18
2 minus 2/5 plus 1/2 minus 4 = -1.9
2 minus 5/2 equals -1/2
7 over 18