## Practice questions

## Answers and explanations

- The correct answer is Choice
**(B).**To solve this expression, change the fractions so they have the same denominator. The least common denominator of this set of fractions is 12. The second fraction doesn’t change because its denominator is already 12. Add the numerators and place the sum over the common denominator of 12: - The correct answer is Choice
**(E).**Divide the fraction by multiplying its reciprocal: