Review of Introductory Mathematics FRACTIONSThen,The general method of adding or subtracting fractions which do not have a common denominatoris to convert the individual fractions to equivalent fractions with a common denominator. Theseequally sized segments can then be added or subtracted.The simplest method to calculate a common denominator is to multiply the denominators. Thisis obtained if each fraction is multiplied top and bottom by the denominator of the other fraction(and thus by one, giving an equivalent fraction).13861366863361824183018For more than two fractions, each fraction is multiplied top and bottom by each of the otherdenominators. This method works for simple or small fractions. If the denominators are largeor many fractions are to be added, this method is cumbersome.Rev. 0 Page 29 MA-01