2 100 | = | 25 100 | p | - | 1 5 | ( | 1 | - | p | ) |
方程右边 = | 25 100 | p | - | 1 5 | × | 1 | + | 1 5 | p |
= | 25 100 | p | - | 1 5 | + | 1 5 | p |
= | 9 20 | p | - | 1 5 |
2 100 | = | 9 20 | p | - | 1 5 |
- | 9 20 | p | = | - | 1 5 | - | 2 100 |
- | 9 20 | p | = | - | 11 50 |
9 20 | p | = | 11 50 |
p | = | 11 50 | ÷ | 9 20 |
= | 11 50 | × | 20 9 |
= | 11 5 | × | 2 9 |
p | = | 22 45 |
p | = | 0.488889 |