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how do I solve 2.58= in fraction?

11 Answers

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  • 1 month ago

    move decimal point to the right and divide it by 100 

    2.58 = 258/100 = 129/50 or 2 29/50 answer//

  • ?
    Lv 7
    2 months ago

    Decimal positions are 1/10, 1/100, 1/1000 etc. 2.58 extends two digits past the decimal point, so the correct denominator is 100.

    2.58 = 258 / 100

    To put the fraction in simplest form, check whether the numerator and denominator share any factors. 

    The only prime factors of 100 are 2 and 5. 258 is clearly not a multiple of 5, but it is a multiple of 2. So divide both numerator and denominator by 2:

    258 / 100 = 129 / 50

  • D g
    Lv 7
    2 months ago

    I would multiply .58 x to equal an integer 

    The integer easiest is 58 

    .58 x 100 = 58

    Then divide both sides by 100 

    0.58 = 58/100

    2.58 = 258/100

  • 2 months ago

    The .58 part is hundredths, so put it over 100.

    2 58/100 or 258/100

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  • 2 months ago

    Since the '.58' moiety has two decimal places then we place the decimal over 100 ( 2 zeroes) 

    Hence 

    2 .58 = 2 58/100 

    Cancel down the fraction by '2' 

    2 29/50 is the fraction.  

  • ?
    Lv 7
    2 months ago

    2.58=2.58/1=2.58*100/(1*100)=258/100=129/50=2 29/50.

  • 2 months ago

    Every number IS already a fraction we just don't normally put the 1 in the denominator (especially if it has a decimal point)

    2.58/1

    keep multiplying by 10/10 until no decimal in numerator

    2.58/1

    25.8/10

    258/100

    Now we can reduce by removing like factors. If both even, I usually divide by 2/2 first.

    258/100

    129/50

    Cannot reduce further

  • 2 months ago

    2.58 = 129/50

  • 2 months ago

    Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there are 2 numbers to the right of the decimal point, place the decimal number over 2 (100)Next, add the whole number to the left of the decimal.

      58                       29

    2------  simplify  2-------

      100                      50

  • ?
    Lv 7
    2 months ago

    2.58 = 258/100

    Divide by 2 since both numerator and denominator are even. 129/50

    129 can be divided further by 1, 3, 43, 129. 

    50 can be further divided by 1, 2, 5, 10, 25, 50. 

    Those 2 don’t share anything in common so 129/50 is in reduced form. 

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