Solve the following exercise:
41+81=?
To solve the problem of adding the fractions 41 and 81, follow these steps:
- Step 1: Identify the denominators: 4 and 8. We need a common denominator to add the fractions.
- Step 2: Find the least common multiple (LCM) of 4 and 8. The smallest number that both 4 and 8 can divide is 8, so our common denominator will be 8.
- Step 3: Convert 41 to a fraction with denominator 8. To do this, multiply both the numerator and the denominator of 41 by 2:
- 41=4×21×2=82
- Step 4: Now add the fractions: 82+81.
- Since the fractions now have the same denominator, add the numerators: 2+1=3, while keeping the denominator 8.
- The result is 83.
- Step 5: Ensure the fraction is in its simplest form. The fraction 83 is already simplified, as 3 and 8 have no common factors other than 1.
Therefore, the sum of 41+81 is 83.
Once we compare this with the given answer choices, we find that our final result, 83, matches choice 1.
Hence, the correct answer to the problem is 83.