ułamki
sara: 12712−(716+235)=
oblicz
28 lut 15:50
28 lut 15:59
sara: ale jak to obliczyc bo nie moge tego zrozumiec
28 lut 16:03
niuans: | 151 | | 43 | | 13 | | 151 | | 215 | | 78 | | 151 | |
| −( |
| + |
| )= |
| −( |
| + |
| )= |
| − |
| 12 | | 6 | | 5 | | 12 | | 30 | | 30 | | 12 | |
| 293 | | 755 | | 586 | | 169 | |
| = |
| − |
| = |
| =.... |
| 30 | | 60 | | 60 | | 60 | |
28 lut 16:10