Respuesta:
A)1/4+(3/5+2/5)=
1/4+5/5=1/4+1/1=
1/4+4/4=5/4=1¼
B)11/43+(-11/43)=11/43-11/43=0
C)11/7+0/1=11/7+0=11/7
D)(7/12+4/10)+3/6=
(35/60+24/60)+3/6=
59/60+3/6=59/60+30/60=89/60=
1,29/60
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Respuesta:
A)1/4+(3/5+2/5)=
1/4+5/5=1/4+1/1=
1/4+4/4=5/4=1¼
B)11/43+(-11/43)=11/43-11/43=0
C)11/7+0/1=11/7+0=11/7
D)(7/12+4/10)+3/6=
(35/60+24/60)+3/6=
59/60+3/6=59/60+30/60=89/60=
1,29/60