Converting a Fraction to a Decimal

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make a true statement.

Hint

How does choosing the digits for the denominator affect the decimal value?
How might choosing the digit for the decimal make finding the digits for the fraction easier?

Answer

There are many possible answers including:
9/18 = 0.5
7/14 = 0.5
6/12 = 0.5
And 7/35 = 0.2

Source: Owen Kaplinsky

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13 comments

  1. How about 6/12 = 0.5?

  2. nice problem! the answers I get are:

    0.1 – not possible
    0.2 – 3/15 or 7/35
    0.3 – not possible
    0.4 – 6/15
    0.5 – 6/12, 7/14, 8/16, 9/18
    0.6 – 9/15
    0.7 – not possible
    0.8 – not possible
    0.9 – not possible

  3. Great problem!

  4. I think it’s 1/10 = 0.1

  5. ” how does choosing the digits for the denominator affect the decimal value.” The denominator has to be able to be divided by ten. The fraction in it lowest form has to be able to be converted into its lowest tenths. ” how might choosing the digit for the decimal make finding the digit for the fraction easier”.The decimal amount can just get put over a tenth.

  6. Another answer is 3/6

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