A ribbon 6 1/8

feet in length is shortened by having 2 1/12
feet cut off one end. What is the length of the shortened ribbon?(1 point)

4924
feet
4 and 9 over 24 feet

4524
feet
4 and 5 over 24 feet

3524
feet
3 and 5 over 24 feet

4124
feet

1 answer

To find the length of the shortened ribbon, we first need to subtract the length cut off from the original length of the ribbon.

  1. Original length of the ribbon: \( 6 \frac{1}{8} \) feet
    To convert this to an improper fraction:
    \( 6 \frac{1}{8} = \frac{6 \times 8 + 1}{8} = \frac{48 + 1}{8} = \frac{49}{8} \) feet

  2. Length cut off: \( 2 \frac{1}{12} \) feet
    To convert this to an improper fraction:
    \( 2 \frac{1}{12} = \frac{2 \times 12 + 1}{12} = \frac{24 + 1}{12} = \frac{25}{12} \) feet

Now we can perform the subtraction: \[ \text{Length of shortened ribbon} = \frac{49}{8} - \frac{25}{12} \]

To subtract these fractions, we need a common denominator. The least common multiple of 8 and 12 is 24.

Next, we convert both fractions: \[ \frac{49}{8} = \frac{49 \times 3}{8 \times 3} = \frac{147}{24} \] \[ \frac{25}{12} = \frac{25 \times 2}{12 \times 2} = \frac{50}{24} \]

Now we can subtract: \[ \frac{147}{24} - \frac{50}{24} = \frac{147 - 50}{24} = \frac{97}{24} \]

Next, we can convert \( \frac{97}{24} \) into a mixed number:

  • Divide 97 by 24, which goes 4 times (since \( 4 \times 24 = 96 \)).
  • The remainder is \( 97 - 96 = 1 \).
  • So, \( \frac{97}{24} = 4 \frac{1}{24} \).

Thus, the length of the shortened ribbon is \( 4 \frac{1}{24} \) feet.

Among the options provided, the closest corresponding form is: 4 and 1 over 24 feet.