| ( | 594 | − | 33 | m | × | 27 | ) | ÷ | 33 | = | ( | 714 | − | 28 | m | × | 42 | ) | ÷ | 28 |
| 方程左边 = | 594 | × | 1 33 | − | 33 | m | × | 27 | × | 1 33 |
| = | 18 | − | 27 | m |
| 18 | − | 27 | m | = | ( | 714 | − | 28 | m | × | 42 | ) | ÷ | 28 |
| 方程右边 = | 714 | × | 1 28 | − | 28 | m | × | 42 | × | 1 28 |
| = | 51 2 | − | 42 | m |
| 18 | − | 27 | m | = | 51 2 | − | 42 | m |
| - | 27 | m | + | 42 | m | = | 51 2 | − | 18 |
| 15 | m | = | 51 2 | − | 18 |
| 15 | m | = | 15 2 |
| m | = | 15 2 | ÷ | 15 |
| = | 15 2 | × | 1 15 |
| = | 1 2 | × | 1 |
| m | = | 1 2 |
| m | = | 0.5 |