math

posted by 5 grade

this is a math riddle that i can't do so please help i am a fraction eguivalent to 2/4 the sum of my numerator and my denominator is 21 what fraction am i
here it is help me please's

  1. Steve

    Since the sum is odd, either the numerator or denominator is odd.

    Since the fraction is 1/2, the denominator is even. So, we want a faction with odd numerator, even denominator, where they add to 21 and denominator is twice the numerator.

    1/2? no
    3/6? no
    5/10? no
    7/14 <<<---

    or, since the denominator is twice the numerator, that means 3 times the numerator is 21. So, 7/14.

Respond to this Question

First Name

Your Answer

Similar Questions

  1. 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 …
  2. Math

    The numerator of a fraction is two less than its denominator. When both numerator and denominator are increased by 3, the fraction is incre ased by 3/20. Find the original fraction. Pls include solution and workings thx :)
  3. Math

    The numerator of a simple fraction is 2 less than its denominator. The sum of this fraction and its reciprocal is 2 4/35. Find this fraction.
  4. rs aggarwal math class 8 chapter 8 soluation

    in a fraction twince the numerator is 2 more than the denominator . if 3 is added to the numerator and to the denominator , the new fraction is 2/3 . find the original fraction.
  5. math

    the numerator of a fraction is 3 less than the denominator. if 4 us added to the numerator and to the denominator, the resulting fraction is equivalent to 3/4. find the original fraction. Show your solution
  6. math

    When 5 is added to both the numerator and denominator of a fraction the result becomes 1/2.When 1 is subtracted from both the numerator and denominator the fraction becomes 1/5.Find the fraction. plzz do whole method, i cant understand …
  7. Math

    The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominator, the resulting fraction is equal to 4/5 . Find the original fraction. PLZ SHOW ALL WORK AND HURRY!!!
  8. Math

    The sum of the numerator and denominator of a fraction is 3 less than twice the denomiator.If the numerator and denomiator are decreased by 1,the numerator becomes half the denominator. Determine the fraction
  9. math

    The denominator of a fraction is 20 more than the numerator of the fraction. If 5 is added to the numerator of the fraction and the denominator is unchanged, the value of the resulting fraction becomes 38. Use x as your variable. Find …
  10. Math

    If you add the denominator to both the numerator and denominator of a fraction, you get a new fraction that sometimes is larger than the original fraction. Find a fraction where the new fraction is four times as large as the original …

More Similar Questions