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Resolver.
Suma y resta de fracciones homogeneas.
-7/12 + 5/12 - 3/12 + 8/12 =
(- 7 + 5 - 3 + 8)/12 =
(13 - 10)/12
3/12 = Simplificas sacas 3ra
(3/3)/(12/3) =
1/4
- 4/11 - 7/11 + 5/11 - 6/11 =
( - 4 - 7 + 5 - 6)/11 =
(- 17 + 5)/11 =
- 12/11
- 5/16 + 7/16 - 9/16 + 13/16 - 3/16 =
(- 5 + 7 - 9 + 13 - 3)/16 =
( 20 - 17)/16 =
3/16
-7/12 + 5/12 - 3/12 + 8/12 =
(- 7 + 5 - 3 + 8)/12 =
(13 - 10)/12
3/12 = Simplificas sacas 3ra
(3/3)/(12/3) =
1/4
- 4/11 - 7/11 + 5/11 - 6/11 =
( - 4 - 7 + 5 - 6)/11 =
(- 17 + 5)/11 =
- 12/11
- 5/16 + 7/16 - 9/16 + 13/16 - 3/16 =
(- 5 + 7 - 9 + 13 - 3)/16 =
( 20 - 17)/16 =
3/16