| 1 | ÷ | 480 | + | 1 | ÷ | x | = | 1 | ÷ | 150 |
| Multiply both sides of the equation by: | x |
| 1 | ÷ | 480 | × | x | + | 1 | = | 1 | ÷ | 150 | × | x |
| 1 | ÷ | 480 | × | x | − | 1 | ÷ | 150 | × | x | = | - | 1 |
1 480 | x | − | 1 150 | x | = | - | 1 |
| - | 11 2400 | x | = | - | 1 |
| 1 | = | 11 2400 | x |
11 2400 | x | = | 1 |
| x | = | 1 | ÷ | 11 2400 |
| = | 1 | × | 2400 11 |
| x | = | 2400 11 |
| x | = | 218.181818 |