GMAT - Target TestPrep. Exam Excellence: Study Guides and Instructor Notes Included

a/b x c/d = ac/bd Dividing fractions Multiply by the reciprocal: a/b x c/d = a/b x d/c = ad/bc Two methods for simplifying fractions Cross cancel and top-and-bottom cancel 1 over a fraction 1/a/b = b/a How to simplify a complex fraction: Method 1 Multiply both the numerator of the complex fraction and the denominator of the complex fraction by the LCD How to simplify a complex fraction: Method 2 Write the numerator of the complex fraction as a single fraction, do the same to the denominator, then divide How to simplify a complex fraction: Method 3 After doing method 2, (a/b)/(c/d) = ad/bc Bowtie method of comparing fractions Best way to compare size of multiple fractions Find the least common denominator and then compare the numerators