21+42=
To solve the problem 21+42, we'll follow these steps:
- Step 1: Convert 21 to have a denominator of 4. Multiply the numerator and the denominator by 2 to get 42.
- Step 2: With both fractions now having a common denominator, add them: 42+42.
- Step 3: Combine the numerators and place the sum over the common denominator: 42+2=44.
- Step 4: Simplify the fraction 44 to 1.
Therefore, the solution to the problem is 1.