Solve the following exercise:
23−21=?
To solve the problem 23−21, we will follow these steps:
- Step 1: Identify that both fractions have the same denominator, which allows us to directly subtract their numerators.
- Step 2: Perform the subtraction of the numerators while maintaining the common denominator.
Let's apply the steps:
Step 1: The expression is 23−21. Both fractions have a common denominator of 2.
Step 2: Subtract the numerators:
23−1=22.
The expression simplifies to 1 as 22=1.
Therefore, the correct answer to the problem is 1.