| 1 | ÷ | d | + | 1 | ÷ | d | + | 1 | ÷ | ( | d | + | 6 | ) | = | 1 | ÷ | ( | d | + | 4 | ) |
| 方程两边同时乘以: | d | , | ( | d | + | 4 | ) |
| 1 | ( | d | + | 4 | ) | + | 1 | ÷ | 1 | × | 1 | ( | d | + | 4 | ) | + | 1 | ÷ | ( | d | + | 6 | ) | × | d | ( | d | + | 4 | ) | = | 1 | d |
| 1 | d | + | 1 | × | 4 | + | 1 | ÷ | 1 | × | 1 | ( | d | + | 4 | ) | + | 1 | ÷ | ( | d | + | 6 | ) | × | d | ( | d | + | 4 | ) | = | 1 | d |
| 1 | d | + | 4 | + | 1 | ( | d | + | 4 | ) | + | 1 | ÷ | ( | d | + | 6 | ) | × | d | ( | d | + | 4 | ) | = | 1 | d |
| 方程两边同时乘以: | ( | d | + | 6 | ) |
| 1 | d | ( | d | + | 6 | ) | + | 4 | ( | d | + | 6 | ) | + | 1 | ( | d | + | 4 | ) | ( | d | + | 6 | ) | + | 1 | d | ( | d | + | 4 | ) | = | 1 | d | ( | d | + | 6 | ) |
| 1 | d | d | + | 1 | d | × | 6 | + | 4 | ( | d | + | 6 | ) | + | 1 | ( | d | + | 4 | ) | ( | d | + | 6 | ) | + | 1 | = | 1 | d | ( | d | + | 6 | ) |
| 1 | d | d | + | 1 | d | × | 6 | + | 4 | ( | d | + | 6 | ) | + | 1 | ( | d | + | 4 | ) | ( | d | + | 6 | ) | + | 1 | = | 1 | d | d | + | 1 | d | × | 6 |
| 1 | d | d | + | 6 | d | + | 4 | ( | d | + | 6 | ) | + | 1 | ( | d | + | 4 | ) | ( | d | + | 6 | ) | + | 1 | d | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 6 | d | + | 4 | d | + | 4 | × | 6 | + | 1 | ( | d | + | 4 | ) | ( | d | + | 6 | ) | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 6 | d | + | 4 | d | + | 24 | + | 1 | ( | d | + | 4 | ) | ( | d | + | 6 | ) | + | 1 | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 10 | d | + | 24 | + | 1 | ( | d | + | 4 | ) | ( | d | + | 6 | ) | + | 1 | d | ( | d | + | 4 | ) | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 10 | d | + | 24 | + | 1 | d | ( | d | + | 6 | ) | + | 1 | × | 4 | ( | d | + | 6 | ) | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 10 | d | + | 24 | + | 1 | d | ( | d | + | 6 | ) | + | 4 | ( | d | + | 6 | ) | + | 1 | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 10 | d | + | 24 | + | 1 | d | d | + | 1 | d | × | 6 | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 10 | d | + | 24 | + | 1 | d | d | + | 6 | d | + | 4 | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 16 | d | + | 24 | + | 1 | d | d | + | 4 | ( | d | + | 6 | ) | + | 1 | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 16 | d | + | 24 | + | 1 | d | d | + | 4 | d | + | 4 | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 16 | d | + | 24 | + | 1 | d | d | + | 4 | d | + | 24 | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 20 | d | + | 48 | + | 1 | d | d | + | 1 | d | ( | d | + | 4 | ) | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 20 | d | + | 48 | + | 1 | d | d | + | 1 | d | d | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 20 | d | + | 48 | + | 1 | d | d | + | 1 | d | d | = | 1 | d | d | + | 6 | d |
| 1 | d | d | + | 24 | d | + | 48 | + | 1 | d | d | + | 1 | d | d | = | 1 | d | d | + | 6 | d |