Answer:
ans = 4
Explanation:
he has 2 1\2 and 4 1\4
to find the ans, we must firstly find out his total amount of fabric, so we add the available fabric
first we add whole numbers
 2 + 4 = 6
then we add fractions
 1 1
 --- + ---
 2 4
 2 + 1 3
 ------------- = ---
 4 4
after we add the whole no and fraction
 6 + 3\4 = 6 3\4
note 10 1\2 is greater than 6 3\4
so to find the part left, we
 have
 10 1\2 - 6 3\4
as our answer