21+61=
To solve the problem of adding 21 and 61, we need to follow these steps:
- Step 1: Determine the least common denominator (LCD).
- Step 2: Convert the fractions to have this common denominator.
- Step 3: Add the fractions.
- Step 4: Simplify the result if necessary.
Step 1: The denominators are 2 and 6. The least common multiple of 2 and 6 is 6.
Step 2: We convert each fraction:
- Convert 21 to a denominator of 6: 21=2×31×3=63.
- The fraction 61 already has the denominator 6.
Step 3: Add the fractions with common denominators:
63+61=63+1=64.
Step 4: Simplify the fraction 64.
The greatest common divisor of 4 and 6 is 2, so divide both the numerator and the denominator by 2:
64=6÷24÷2=32.
Therefore, the solution to the problem is 32.