Final answer:
To simplify an expression involving fractions, a common denominator is used to combine the terms. Methods might include multiplying both sides by the denominator and simplifying complex fractions using appropriate mathematical rules.
Step-by-step explanation:
The student is asked to simplify an algebraic expression. The method to tackle such problems involves finding a common denominator when dealing with fractions and then combining like terms to simplify the expression. While none of the given examples match the problem provided, a general approach can be made on how to simplify expressions that include fractions.
When simplifying the expression such as A. 23/63x + 1/2, you would find a common denominator and combine the terms. This involves multiplying the denominator of the first fraction by 2 and the denominator of the second fraction by 63x to make them common. Once the common denominator is achieved, the numerators can be added or subtracted as indicated.
In the context of the examples provided, negative exponents and operations involving fractions are common themes. Multiplying both sides by the denominator and simplifying complex fractions are techniques often used to simplify algebraic expressions.