Q&A for How to Find the Reciprocal

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  • Question
    What is the reciprocal of a squared number?
    Donagan
    Top Answerer
    It is 1 divided by the squared number.
  • Question
    What is the reciprocal of 8?
    Community Answer
    1/8. Since every whole number is invisibly divided by 1 (in this case, 8/1), you just interchange the numerator and denominator, putting the denominator over the numerator and there is your reciprocal, 8/1. In other words, a reciprocal takes a number a/b and turns it into b/a.
  • Question
    What is the reciprocal of a+b?
    Donagan
    Top Answerer
    1 / (a+b).
  • Question
    How do I get the reciprocal of a mixed number?
    Community Answer
    Convert the mixed number into an improper fraction, then find the reciprocal as you normally would.
  • Question
    How do I find the reciprocal of 4?
    Community Answer
    The number 4 as a fraction is 4/1. To find the reciprocal of a number, the numerator and denominator switch places, so the reciprocal of 4 is 1/4.
  • Question
    What is the reciprocal of 2.72?
    Community Answer
    The reciprocal of 2.72 is (1 divided by 2.72)=0.367647 to six significant figures.
  • Question
    How do I use a mathematical table to find reciprocal of a decimal number?
    Donagan
    Top Answerer
    Some tables do have a column devoted to reciprocals, but not typically reciprocals of decimal numbers. Your best bet is simply to divide the decimal number into 1.
  • Question
    Reciprocal of negative number?
    Donagan
    Top Answerer
    The reciprocal of a negative number is the same as the reciprocal of the positive number, except it's a negative value. For example, the reciprocal of -11 is -1/11.
  • Question
    What is the reciprocal of 7^3 in fraction, is it (1/7)^3 or 7^-3?
    Donagan
    Top Answerer
    Both are correct.
  • Question
    What is the reciprocal of 2?
    Community Answer
    1/2. For reciprocating any number, just put it as a fraction and reverse the numerator and denominator. For example, 3 becomes 1/3 ; 97 becomes 1/97 ; 1/23 becomes 23.
  • Question
    What is the reciprocal of -2.45?
    Donagan
    Top Answerer
    It is -1 / 2.45.
  • Question
    R /a-b, what is the reciprocal please?
    Donagan
    Top Answerer
    (a-b) / R.
  • Question
    What is 1/4 the reciprocal of 2?
    Community Answer
    It's ¼ x ½ = 1/8.
  • Question
    How can I quickly find the decimal value of any reciprocal?
    Donagan
    Top Answerer
    There is no quick way other than dividing the new denominator into the new numerator.
  • Question
    What is the reciprocal of a reciprocal?
    Community Answer
    The reciprocal of a reciprocal is the same thing it was before you flipped it the first time.
  • Question
    What does reciprocal mean?
    Community Answer
    A reciprocal in math is a number that you get by inverting another number. If you invert a reciprocal, you get your original number. If you multiply a number by its reciprocal, you get 1.
  • Question
    What is the reciprocal of 10/11?
    Fy Akindele
    Community Answer
    The reciprocal is 11/10, which when simplified would be 1 1/10 as a mixed fraction.
  • Question
    How do I find the reciprocal of a negative decimal?
    Donagan
    Top Answerer
    Exactly the same way you do it with a positive decimal, except there would be a negative sign in front. Thus, the reciprocal of -0.5 is -2.
  • Question
    What is the reciprocal of 2/8?
    Donagan
    Top Answerer
    8/2, or 4.
  • Question
    How do I find the reciprocal of 0.0016?
    Donagan
    Top Answerer
    Convert the decimal to a fraction, and invert it. If you have to express the answer as a decimal, divide the new denominator into the new numerator.
  • Question
    The recipicoal of 4 1/6 is?
    Donagan
    Top Answerer
    4 1/6 = 25/6. The reciprocal is 6/25.
  • Question
    What is the reciprocal of 2[(7/8) - 3]?
    Community Answer
    2[(7/8) - 3] = 2(7/8) - (24/8)] = 2(-17/8) = -34/8. Its reciprocal is -8/34, or -4/17.
  • Question
    The sum between a number and 4 times its reciprocal is 4. Find the number.
    Donagan
    Top Answerer
    Let x be the number. Then x + (4)(1/x) = x + 4/x = 4. Subtract 4 from both sides: x + 4/x - 4 = 0. Multiply both sides by x to eliminate the fraction: x² + 4 - 4x = 0 = x² -4x + 4. By factoring, (x - 2)² = 0. Therefore, x = 2. To check: 2 + (4)(½) = 2 + 2 = 4.
  • Question
    Why is the reciprocal of x^-1 equal to 1/x?
    Donagan
    Top Answerer
    It isn't. x^-1 = 1/x, and its reciprocal is x.
  • Question
    What is the reciprocal of 25 divided by 3 1/3?
    Donagan
    Top Answerer
    The reciprocal of 25 is 1/25. 3 1/3 is 10/3. 1/25 divided by 10/3 = (1/25)(3/10) = 3/250.
  • Question
    0.56÷80 = explain the whole process?
    Donagan
    Top Answerer
  • Question
    Do we have to flip 2.5 the answer of 1 divided by 4.0?
    Donagan
    Top Answerer
    The reciprocal of 2.5 is (1 / 2.5) = 0.4. 1 / 4.0 = 0.25.
  • Question
    What is reciprocal of 4/3/3/5?
    Donagan
    Top Answerer
    The reciprocal of (4/3) / (3/5) is (3/5) / (4/3) = (3/5)(3/4) = 9/20.
  • Question
    What is the reciprocal of x/y and x^2?
    Donagan
    Top Answerer
    The reciprocal of x/y is y/x. The reciprocal of x² is 1/x².
  • Question
    How do you find a reciprocal of a whole number?
    Donagan
    Top Answerer
    The reciprocal of a whole number is a fraction whose denominator is the whole number and whose numerator is 1. Take the number 3 for example. 3 can be expressed as the fraction 3/1. Its reciprocal is 1/3.
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