| ( | ( | x | + | 24 | ) | ÷ | 60 | ) | + | ( | x | ÷ | 75 | ) | = | 1 |
| 方程左边 = | ( | x | + | 24 | ) | ÷ | 60 | + | ( | x | ÷ | 75 | ) |
| = | x | × | 1 60 | + | 24 | × | 1 60 | + | ( | x | ÷ | 75 | ) |
| = | x | × | 1 60 | + | 2 5 | + | ( | x | ÷ | 75 | ) |
| = | 1 60 | x | + | 2 5 | + | x | ÷ | 75 |
| = | 3 100 | x | + | 2 5 |
3 100 | x | + | 2 5 | = | 1 |
3 100 | x | = | 1 | − | 2 5 |
3 100 | x | = | 3 5 |
| x | = | 3 5 | ÷ | 3 100 |
| = | 3 5 | × | 100 3 |
| = | 1 | × | 20 |
| x | = | 20 |