Math

Cards (15)

  • What is the decimal representation mentioned in the study material?
    1. 252525...
  • What does the decimal 6.252525... represent?
    It is a recurring decimal.
  • How do you express the recurring decimal 6.252525... as a fraction?
    Let x = 6.252525...
  • What is the first step in converting the recurring decimal to a fraction?
    Set x equal to the decimal.
  • What is the purpose of multiplying x by 100 in the conversion process?
    To shift the decimal point two places.
  • What equation do you get after multiplying x by 100?
    100x = 625.252525...
  • What do you subtract from the equation 100x = 625.252525...?
    Subtract x = 6.252525...
  • What is the result of subtracting the two equations?
    99x = 619
  • How do you solve for x in the equation 99x = 619?
    x = 619/99
  • What is the simplified fraction for the recurring decimal?
    x = 619/99
  • What is the process to convert a recurring decimal to a fraction?
    1. Let x equal the decimal.
    2. Multiply x by a power of 10 to shift the decimal.
    3. Set up an equation by subtracting the original x.
    4. Solve for x to find the fraction.
  • What is the significance of the coefficient of x in the equations?
    It helps in solving for x.
  • Why is it important to align decimal points when subtracting equations?
    To ensure accurate subtraction of values.
  • What is the final step in expressing the decimal as a fraction?
    Divide the numerator by the denominator.
  • What are the key steps in the process of converting decimals to fractions?
    • Let x equal the decimal.
    • Multiply by a power of 10.
    • Subtract the original equation.
    • Solve for x.
    • Express as a fraction.