GMAT - Target Test Prep Exam Questions and Answers (Solved Papers) Mixed Number to Improper Fraction - Correct Answers ✅Multiply the denominator by the whole number, add to the numerator. Keep the denominator the same.least common denominator - Correct Answers ✅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.equivalent fractions - Correct Answers ✅Two fractions a/b and c/d are equivalent if ad=bc Adding/subtracting fractions with same denominator - Correct Answers ✅a/b + c/b = (a+c)/b or a/b +c/b = (a- c)/b Distributive property of division over addition - Correct Answers ✅(a+c)/b = a/b + c/b Adding/subtracting fractions with different denominators - Correct Answers ✅a/b + c/d = (ad + bc)/bd ... a/b - c/d = (ad - bc)/bd Subtracting a fraction from a whole number - Correct Answers ✅A - b/c = (c x A - b)/c 1 / 4
GMAT - Target Test Prep Exam Questions and Answers (Solved Papers) Multiplying fractions - Correct Answers ✅a/b x c/d = ac/bd Dividing fractions - Correct Answers ✅Multiply by the
reciprocal: a/b x c/d = a/b x d/c = ad/bc
Two methods for simplifying fractions - Correct Answers ✅Cross cancel and top-and-bottom cancel
- over a fraction - Correct Answers ✅1/a/b = b/a
How to simplify a complex fraction: Method 1 - Correct
Answers ✅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 - Correct
Answers ✅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 - Correct
Answers ✅After doing method 2, (a/b)/(c/d) = ad/bc Bowtie method of comparing fractions - Correct Answers ✅ 2 / 4
GMAT - Target Test Prep Exam Questions and Answers (Solved Papers) Best way to compare size of multiple fractions - Correct Answers ✅Find the least common denominator and then compare the numerators
- other ways to compare fractions - Correct Answers ✅1.
- Use a common numerator (larger denominator = smaller
Use a reference point
fraction) Given a fraction, multiplying or dividing both the numerator and the denominator by the same nonzero constant... - Correct Answers ✅will not change the value of the
fraction. Ex: 1/2 x 5/5 = 5/10
Given a fraction, adding or subtracting from the numerator and denominator the same nonzero constant... - Correct Answers ✅will change the value of the fraction If a fraction is between 0 and 1, adding a positive constant to top and bottom will...Subtracting from the top and bottom of this fraction a positive constant will... - Correct Answers ✅Make the fraction larger Make the fraction smaller (as long as it's still + ) 3 / 4
GMAT - Target Test Prep Exam Questions and Answers (Solved Papers) If a fraction is greater than 1, adding a positive constant to top and bottom will...Subtracting from the top and bottom of this fraction a positive constant will... - Correct Answers ✅Make the fraction smaller Make the fraction larger (as long as it's still +) How to add or subtract decimals - Correct Answers ✅vertically line up the decimal points of the numbers and then add/subtract How to multiply decimals - Correct Answers ✅Does not require aligning the decimal points. arrange with right justification, multiply like normal and then count the total number of decimal places to the right of the decimal in the numbers. Then move the decimal point of the product to the left the same number of spaces Shortcut for multiplying decimals - Correct Answers ✅Count the total number of decimal places from the two numbers being multiplied. That will be the number of decimal places in the answer (unless the answer ends in 0) How to divide decimals - Correct Answers ✅1. Move the decimal point of the divisor to the right until it becomes a whole number
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