Gmat target testprep - Study guides, Class notes & Summaries

GMAT - Target TestPrep Exam

GMAT - TARGET TESTPREP QUESTIONS WITH VERIFIED ANSWERS Divisibility Rules - 11 - Answer-11 - If you sum every second digit and then subtract all other digits and the answer is: 0, or is divisible by 11, then the number is divisible by 11. Example: to see whether 9,488,699 is divisible by 11, sum every second digit: 4+8+9=21, then subtract the sum of other digits: 21-(9+8+6+9)=-11, -11 is divisible by 11, hence 9,488,699 is divisible by 11. Divisibility Rules - 12 - Answer-12 - If the n...

Mixed Number to Improper Fraction Multiply the denominator by the whole number, add to the numerator. Keep the denominator the same. least common denominator The least common multiple of the denominators of two or more fractions. To determine the LCD of the fractions, list the multiples of the denominators and find the smallest number that is common to the lists. Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full scr...

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 deno...