Suppose you were interested in how much of the home energy dollar is spent on heating and cooling plus water heating. This would require the addition of fractions. Addition of Fractions. See sample problem in Example 1. 1. All elements to be added must be in fraction form.
Improper fractions are acceptable.
If your answer is an improper fraction, change to a mixed number. Reduce any fraction in the answer to lowest terms. Both elements are fractions. The LCD is 10. This answer is a fraction in lowest terms.