1.5+28
28+ 10
This is a fraction by the way
Add the digits vertically from right to left:
0 + .5 = .5:
28
+ 1.5
.5
8 + 1 = 9:
9.5
2 + 0 = 2:
29.5
------
8+0 = 8:
+10
8
2 + 1 = 3:
+1090 
