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4 September, 06:09

An interior decorator bought 12 1/2 yards of material to make drapes. He used 8 2/3 yards on one pair of drapes. How much material does he have left?

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  1. 4 September, 06:21
    0
    3.9 yards is the answer
  2. 4 September, 06:26
    0
    Ok, so this is a subtraction problem with fractions. The first step is to write the equation you need to make.

    12 1/2 - 8 2/3

    Next would be to change the mixed fractions to improper fractions.

    25/2 - 26/3

    Now, we need to find a common denomintor, since we can't just subtract like it is now. The Lowest Common Denominator would be 6 because 2*3 = 6. So we need to multiply the numerator and the denominator of both fractions, so that they will have the same denominator.

    3 (25/2) - 2 (26/3)

    75/6 - 52/6

    Now we just subtract the numerators and leave that new answer over the same denominator.

    75/6 - 52/6 = 23/6

    If it asks to simplify into fraction, we can put it as,

    3 5/6
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