An equation where Y = -7
1/3 minus 2/5 is -1/15
2 minus 2/5 plus 1/2 minus 4 = -1.9
2/3 minus 1/6 = 1/2 or 0.5
2/3 minus 12/15 is -2/15
If you mean: 7/1-2/5-5 then the answer is 8/5 or 1.6
We convert to fifteenths which gives six fifteenths minus five fifteenths, so the answer is one fifteenth.
2 over 3 can not be simplified 2 over 3 minus 1 over 6 equals one-half
3/6, or 1/2
3/2 minus 2 equals -1/2
2 minus 5/2 equals -1/2
2/5 minus 4/9 equals -2/45
-5/6