To convert the decimal 5.875 to a fraction, we can break it down as follows:
- The whole number part is 5.
- The decimal part is 0.875.
Now, to convert 0.875 to a fraction:
- 0.875 can be expressed as \( \frac{875}{1000} \).
Next, we simplify \( \frac{875}{1000} \):
- Both 875 and 1000 can be divided by 125.
- \( 875 \div 125 = 7 \)
- \( 1000 \div 125 = 8 \)
Thus, \( \frac{875}{1000} \) simplifies to \( \frac{7}{8} \).
Now we can combine the whole number and the fraction:
- So, \( 5.875 = 5 + \frac{7}{8} \).
This can be written as an improper fraction:
- \( 5 = \frac{40}{8} \) (since \( 5 \times 8 = 40 \)).
- Therefore, \( 5 + \frac{7}{8} = \frac{40}{8} + \frac{7}{8} = \frac{47}{8} \).
So, the amount of wood Brigid needs, expressed as a fraction, is \( \frac{47}{8} \).