Kaplan Nursing Entrance Exam (Science & Grammar)

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How do you perform order of operations? By following this saying, Please excuse my dear aunt sally. (parenthesis, exponents, multiplication, division, addition, and subtraction) (Left to Right Alway... s) How do you perform adding fractions? First find the common denominator, then add the numerators. Example: 1/2 (2) + 1/4 = 2/4 + 1/4 = 3/4 How do you perform subtracting fractions? First find the common denominator, then subtract the numerators. Example: 1/2 (2) - 1/4 = 2/4 - 1/4 = 1/4 How to you perform dividing fractions? Invert the second one fraction and multiply across. Example: 1/2 divide 3/5 = 1/2 * 5/3 = 5/6 How do you perform multiplying fractions? Multiply the numerators and the denominators. Example: 5/7 * 3/4 = 15/28 How do you reduce fractions? Factor out and cancel out all factors the numerator and denominator have in common. Example: 28/36 divide by 4 = 7/9 How do you convert a mixed fraction into an improper fraction? Multiply the whole number by the denominator, then add the nominator. Example: 7 1/3 = 7 * 3 = 21 +1 = 3 Therefore, 22/3 How do you convert a improper fraction into a mixed fraction? Divide the denominator into the numerator to get a whole number quotient with a remainder. Example: 108/5 = 21 3/5 How do you find the reciprocal of a faction? By switching the numerator and the denominator. Example: 7/3 = 3/7 How do you compare fractions? Re-express them with a common denominator. Example: 3/4 = 21/28 and 5/7 = 20/28 Therefore 3/4 is greater then 5/7. Or convert them to decimals. [Show More]

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