Ineed asap () adding screenshot also, i really need simplify -4 1/4 - (-9 1/2)

Simplify the following:
-(1/4 + 4) + (1/2 + 9)

Put 4 + 1/4 over the common denominator 4. 4 + 1/4 = (4×4)/4 + 1/4:
-(4×4)/4 + 1/4 + 9 + 1/2

4×4 = 16:
-(16/4 + 1/4) + 9 + 1/2

16/4 + 1/4 = (16 + 1)/4:
-(16 + 1)/4 + 9 + 1/2

16 + 1 = 17:
-17/4 + 9 + 1/2

Put -17/4 + 9 + 1/2 over the common denominator 4. -17/4 + 9 + 1/2 = (-17)/4 + (4×9)/4 + 2/4:
(-17)/4 + (4×9)/4 + 2/4

4×9 = 36:
(-17)/4 + 36/4 + 2/4

(-17)/4 + 36/4 + 2/4 = (-17 + 36 + 2)/4:
(-17 + 36 + 2)/4

36 + 2 = 38:
(38 - 17)/4
 | 3 | 8
- | 1 | 7
 | 2 | 1:
  21/4 or 5.25 decimal

There would be 36.35 pounds