It is: 12-5/8 = 11 and 3/8 or 11.375
Twelve eighths minus one sixth is one and one third.
Two and three-eighths
three eighths
Three eighths minus one fourth is one eighth.
zero
1/8
1½ = Twelve eighths so the answer is seven-eighths
1/4 minus 3/8 is -1/8
5 and 7/8
3 and 3/8
2/8 minus 1/2 is -1/4