Five friends each knit one part of a scarf that is 15/12

yards long.

Which shows the fractions of the scarf each friend could have knit?

(1 point)
Responses

1/12+2/12+3/12+8/12+4/12

1 12 + 2 12 + 3 12 + 8 12 + 4 12

1/12+6/12+3/12+2/12+4/12

1 12 + 6 12 + 3 12 + 2 12 + 4 12

2/12+3/12+3/12+2/12+5/12

2 12 + 3 12 + 3 12 + 2 12 + 5 12

5/12+1/12+4/12+2/12+5/12

1 answer

To solve this problem, we need to check which of the given options adds up to the total length of the scarf, which is \( \frac{15}{12} \) yards.

First, let's convert \( \frac{15}{12} \) to a simpler form: \[ \frac{15}{12} = \frac{5}{4} \text{ (or 1.25 yards)} \]

Now, adding up the fractions provided in each response we can check if they equal \( \frac{15}{12} \) or \( 1.25 \).

  1. Option 1: \( \frac{1}{12} + \frac{2}{12} + \frac{3}{12} + \frac{8}{12} + \frac{4}{12} \)

    • Sum = \( \frac{1 + 2 + 3 + 8 + 4}{12} = \frac{18}{12} = \frac{3}{2} = 1.5 \)
  2. Option 2: \( \frac{1}{12} + \frac{6}{12} + \frac{3}{12} + \frac{2}{12} + \frac{4}{12} \)

    • Sum = \( \frac{1 + 6 + 3 + 2 + 4}{12} = \frac{16}{12} = \frac{4}{3} \approx 1.33 \)
  3. Option 3: \( \frac{2}{12} + \frac{3}{12} + \frac{3}{12} + \frac{2}{12} + \frac{5}{12} \)

    • Sum = \( \frac{2 + 3 + 3 + 2 + 5}{12} = \frac{15}{12} = 1.25 \)
  4. Option 4: \( \frac{5}{12} + \frac{1}{12} + \frac{4}{12} + \frac{2}{12} + \frac{5}{12} \)

    • Sum = \( \frac{5 + 1 + 4 + 2 + 5}{12} = \frac{17}{12} \approx 1.42 \)

Now we can see that the only option that sums up to \( \frac{15}{12} \) (or \( 1.25 \) yards) is: Option 3: \( \frac{2}{12} + \frac{3}{12} + \frac{3}{12} + \frac{2}{12} + \frac{5}{12} \)

This can be concluded as the correct answer.