| x | = | 1501 20 | × | 3 | − | 100 | − | 30 | − | 80 | ( | 5628 25 | ÷ | 10217 20 | ) |
| 方程右边 = | 4503 20 | − | 100 | − | 30 | − | 80 | ( | 5628 25 | ÷ | 10217 20 | ) |
| = | 1903 20 | − | 80 | ( | 5628 25 | ÷ | 10217 20 | ) |
| x | = | 1903 20 | − | 80 | ( | 5628 25 | ÷ | 10217 20 | ) |
| 方程右边 = | 1903 20 | − | 80 | × | 5628 25 | ÷ | 10217 20 |
| = | 1903 20 | − | 360192 10217 |
| = | 12239111 204340 |
| x | = | 12239111 204340 |