用递等式计算．3060÷15-2.5×1.0475×23+1415÷190.16+4÷（38-18）37-[195-（145+47）]35÷[（15+13）÷29]．-数学
=
| 28 |
| 3 |
=9
| 1 |
| 3 |
0.16+4÷（
| 3 |
| 8 |
| 1 |
| 8 |
=0.16+4÷
| 1 |
| 4 |
=0.16+4×4，
=0.16+16，
=16.16；
| 3 |
| 7 |
| 19 |
| 5 |
| 14 |
| 5 |
| 4 |
| 7 |
=
| 3 |
| 7 |
| 19 |
| 5 |
| 14 |
| 5 |
| 4 |
| 7 |
=（
| 3 |
| 7 |
| 4 |
| 7 |
| 19 |
| 5 |
| 14 |
| 5 |
=1-1，
=0；
| 3 |
| 5 |
| 1 |
| 5 |
| 1 |
| 3 |
| 2 |
| 9 |
=
| 3 |
| 5 |
| 3 |
| 15 |
| 5 |
| 15 |
