Suma razlomaka
| 5⁄-17 + 15⁄8 = | 4⁄-14 + 14⁄-11 = |
| 6⁄11 + 6⁄2 = | -4⁄-8 + 13⁄12 = |
| 4⁄17 + 10⁄15 = | 11⁄-18 + 3⁄-9 = |
| 7⁄5 + 12⁄19 = | -20⁄-5 + 2⁄-12 = |
| 5⁄-17 + 15⁄8 = | 4⁄-14 + 14⁄-11 = |
| 6⁄11 + 6⁄2 = | -4⁄-8 + 13⁄12 = |
| 4⁄17 + 10⁄15 = | 11⁄-18 + 3⁄-9 = |
| 7⁄5 + 12⁄19 = | -20⁄-5 + 2⁄-12 = |