Final answer:
The sisters will share P²²⁵/5, 3P²²⁵/5, and 7P²²⁵/15 among themselves.
Step-by-step explanation:
To solve this problem, we can use the concept of ratios. The total ratio is 3 + 5 + 7 = 15. We can then find the share of each sister by dividing their individual ratio by the total ratio:
- Ana's share: (3/15) * P²²⁵ = P²²⁵/5
- Lorna's share: (5/15) * P²²⁵ = 3P²²⁵/5
- Fe's share: (7/15) * P²²⁵ = 7P²²⁵/15
Therefore, Ana receives P²²⁵/5, Lorna receives 3P²²⁵/5, and Fe receives 7P²²⁵/15.