Post a New Question

math

posted by .

How to find the value of y in a fraction

  • math -

    I'm going to try to infer a lot here, because the question is so obscure. I assume you're being asked to work out what the denominator of a fraction is when you're presented with the equivalent decimal. So suppose you're given a decimal number like 0.42, and you're asked to express it as a simple fraction x/y in the simplest possible terms. If that's right, the first thing to do is express it as ANY fraction - and the most obvious one in this example would be 42/100. Now try to reduce it to its simplest form - and you do that by finding factors that are common to both the numerator and the denominator. The numerator factorizes as (7 x 6) = (7 x 3 x 2), whereas the denominator is (2 x 2 x 5 x 5). Of these, only a single 2 is common to both the numerator and the denominator, so the best you can do is reduce the fraction to (21/50). Does that help, or are you trying to do something else entirely?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    find the value of n. fractions. 34+n=1 It says find the value of n. this is a fraction question.What does n =?
  2. Maths

    When the numerator and denominator of a fraction are each increased by 5, the value of the fraction becomes 3/5 When the numerator and denominator of that same fraction are each decreased by 5, the fraction is then 1/5 Find the original …
  3. Algebra

    The numerator of a certain fraction is 3 times the denominator. If the numerator is decreased by 1 and the denomenator is increased by 2, the value of the resulting fraction is 5/2. Find the fraction.
  4. Algebra

    If 3 is subtracted from the numerator of a certain fraction, the value becomes 2/3. If 10 is added to the denominator of the original fraction, the value becomes 1/2. Find the original fraction. Solve the problems by using 2 variables …
  5. math

    write a definition for an equivalent fraction. A. a fraction of multiplication B. fraction with unlike denominators C. a fraction with the value of n D. a fraction thar represents equal amount I put down D.
  6. Math

    The denominator of a fraction exceeds twice the numerator of the fraction by 10. The value of the fraction is 5/12. Find the fraction.
  7. Algebra

    If 3 is subtracted from the numerator of a fraction, the value of the fraction is 1/2. If 6 is added to the denominator of the ORIGINAL fraction, the value of the fraction is 1/2. What is the original fraction?
  8. 4th grade math fraction

    How do I show the work to find the fraction with the greatest value?
  9. math

    the difference between the numerator and denominator of a fraction is 5. if 5 is added to its denominator then the fraction is decreased by one of its one fourth 1(1/4). find the value of fraction
  10. math

    what is the value of -3/4-(3/-8) (the 3/4 fraction only has the - on the 3, not the entire fraction) a -1 1/8 B -3/8 C3/8 D 1 1/8 What I did is first find a common denominator making the equation -6/8-(3/-8)= -9/16 this is not one …

More Similar Questions

Post a New Question