Jenny walks 2 4/5

miles every day. If she has walked 25 1/5
miles so far this month, how many days has she walked?(1 point)

1 answer

To find out how many days Jenny has walked, we need to divide the total miles she has walked by the miles she walks each day.

  1. Convert the mixed numbers to improper fractions:

    • For \(2 \frac{4}{5}\): \[ 2 \frac{4}{5} = \frac{2 \times 5 + 4}{5} = \frac{10 + 4}{5} = \frac{14}{5} \]
    • For \(25 \frac{1}{5}\): \[ 25 \frac{1}{5} = \frac{25 \times 5 + 1}{5} = \frac{125 + 1}{5} = \frac{126}{5} \]
  2. Now divide the total miles by the miles per day: \[ \text{Number of days} = \frac{25 \frac{1}{5}}{2 \frac{4}{5}} = \frac{\frac{126}{5}}{\frac{14}{5}} \]

  3. Dividing fractions:

    • Dividing by \(\frac{14}{5}\) is the same as multiplying by its reciprocal: \[ \frac{\frac{126}{5}}{\frac{14}{5}} = \frac{126}{5} \times \frac{5}{14} = \frac{126 \times 5}{5 \times 14} \]
  4. Cancel out the 5s: \[ \frac{126}{14} \]

  5. Now perform the division: \[ 126 \div 14 = 9 \]

Therefore, Jenny has walked for 9 days.