Simplify Fractions: Simplify the fractions if possible. 248 can be reduced to 31 because both 8 and 24 are divisible by 8. Similarly, 363 can be reduced to 121 because both 3 and 36 are divisible by 3.
Convert to Improper Fractions: Convert the mixed numbers to improper fractions. For 2331, multiply the whole number 23 by the denominator 3 and add the numerator 1 to get 23×3+1=70, so the improper fraction is 370. For 16121, multiply the whole number 16 by the denominator 12 and add the numerator 1 to get 230, so the improper fraction is 231.
Find Common Denominator: Find a common denominator for the two fractions. The least common multiple of 3 and 12 is 12, so we will use 12 as the common denominator. The fraction 370 needs to be converted to have a denominator of 12. To do this, multiply both the numerator and the denominator by 4 to get (3×470×4)=12280.
Subtract Numerators: Now that both fractions have the same denominator, subtract the numerators. Subtract 193 from 280 to get 280−193=87. The resulting fraction is 1287.
Convert to Mixed Number: Convert the improper fraction back to a mixed number. To do this, divide the numerator by the denominator. 87 divided by 12 is 7 with a remainder of 3. So the mixed number is 7123.
Simplify Fraction: Simplify the fraction part of the mixed number if possible. The fraction 123 can be reduced to 41 because both 3 and 12 are divisible by 3.
Combine Whole Number: Combine the whole number and the simplified fraction to get the final answer. The final answer is 741.