Respuesta:
-5/9 + 3/7= (-35+27)/63= -8/63
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8/25 + 12/45=8/25+4/15=(120+100)/375=44/75
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4/24 + 5/32=1/6+5/32=(32+30)/192=62/192=31/96
-15/9 + 1/24=-5/3+1/24=(-40+1)/24=-39/24=13/8
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9/18 + 2/14=1/2+1/7=(7+2)/14=9/14
-5/12+(-2/15)=(-75-24)/180=-99/180=-11/20
-4/9+(-11/7)=(-28-99)/63=-127/63
4/17+(-6/46)=4/17-3/23=(92-51)/391=39/391
10/12+4/15=5/6+4/15=(75+24)/90=99/90=11/10
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Respuesta:
-5/9 + 3/7= (-35+27)/63= -8/63
----
8/25 + 12/45=8/25+4/15=(120+100)/375=44/75
------
4/24 + 5/32=1/6+5/32=(32+30)/192=62/192=31/96
----
-15/9 + 1/24=-5/3+1/24=(-40+1)/24=-39/24=13/8
-----
9/18 + 2/14=1/2+1/7=(7+2)/14=9/14
-----
-5/12+(-2/15)=(-75-24)/180=-99/180=-11/20
----
-4/9+(-11/7)=(-28-99)/63=-127/63
-----
4/17+(-6/46)=4/17-3/23=(92-51)/391=39/391
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10/12+4/15=5/6+4/15=(75+24)/90=99/90=11/10