
Concept explainers
To simplify the given expression.

Answer to Problem 21WE
Explanation of Solution
Given:
Expression:
Calculation:
Consider the given expression
Since the denominators of both the fractions are different, find the least common denominator for both the fractions.
Here, least common denominator is
Now, as the denominators of the two fractions are same, simply subtract the numerators and put the result on the same denominator.
Conclusion:
Therefore, after simplification, the answer is
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