Complete the following exercise:
21:21=?
To solve the division of two fractions 21÷21, we follow these steps:
- Step 1: Recognize that dividing by a fraction is equivalent to multiplying by its reciprocal. In this case, we replace division with multiplication by flipping the second fraction.
- Step 2: Thus, 21÷21 becomes 21×12.
- Step 3: Perform the multiplication: Multiply the numerators and the denominators.
Numerator: 1×2=2
Denominator: 2×1=2
- Step 4: Simplify the result: The fraction 22 simplifies to 1.
Thus, the result of the division 21÷21 is 1.