Solve the following exercise:
21+82=?
To solve this problem, we will follow these steps:
- Step 1: Identify the given fractions 21 and 82.
- Step 2: Determine a common denominator for both fractions. Since 8 is a multiple of 2, we will use 8 as the common denominator.
- Step 3: Convert 21 to an equivalent fraction with a denominator of 8.
- Step 4: Add the fractions together.
Now, let's work through these steps:
Step 1: The fractions given are 21 and 82.
Step 2: We choose 8 as the common denominator because it is a multiple of 2.
Step 3: Convert 21 to have a denominator of 8. To do this, multiply both the numerator and the denominator of 21 by 4:
21=2×41×4=84
The fractions now are 84 and 82, both having the common denominator 8.
Step 4: Add the numerators of these fractions:
84+82=84+2=86
Therefore, the sum of 21+82 is 86.