| 4880 | × | 4 5 | = | ( | 1 | + | 1 | ÷ | 9 | ) | x |
| Left side of the equation = | 3904 |
| 3904 | = | ( | 1 | + | 1 | ÷ | 9 | ) | x |
| Right side of the equation = | 1 | x | + | 1 | ÷ | 9 | × | x |
| = | 1 | x | + | 1 9 | x |
| = | 10 9 | x |
| 3904 | = | 10 9 | x |
| - | 10 9 | x | = | - | 3904 |
| 3904 | = | 10 9 | x |
10 9 | x | = | 3904 |
| x | = | 3904 | ÷ | 10 9 |
| = | 3904 | × | 9 10 |
| = | 1952 | × | 9 5 |
| x | = | 17568 5 |
| x | = | 3513.6 |