1.-formular 5 ejemplos con sumas con fracciones mixtas y heterogénas 5 de cada uno. 2.- 5 restas con fracciones heterogenas para horita
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1.-formular 5 ejemplos con sumas con fracciones mixtas y heterogénas 5 de cada uno.
2.- 5 restas con fracciones heterogenas para horita
1
a) ( 3+1/2) +(4+3/5)+(6+2/3)=
7/2 + 23/5 20/3 =(105+138+200)/30=443/30
mcm=30
b) ( 4+1/2) +(1+3/4)+(7+1/3)=
9/2 + 7/4 22/3 =(54+21+88)/30=163/12
mcm=12
c) ( 5+1/5) +(3+1/3)+(7+1/4)=
26/5 + 10/3 29/4 =(312+200+435)/60=947/60
mcm=60
d ( 4+1/5) +(5+1/2)+(7+1/3)=
22/5 + 11/2 22/3 =(132+165+220)/30=517/30
mcm=30
e) ( 2+1/6) +(8+1/4)+(9+2/3)=
13/6 + 33/4 29/3 =(26+99+116)/12=241/12
mcm=12
a)5/7+3/5=(25+21)/35=46/35
b)3/5+4/9=(27+20)/45=47/45
c)1/2+2/3+1/4=(6+8+3)/12=17/12
d)3/7+5/3+1/21=(9+35+1)/21=45/21=15/7
e)1/6+1/4+3/5=(10+15+36)/60=61/60
2)
a)5/7-3/5=(25-21)/35=4/35
b)3/5-4/9=(27-20)/45=7/45
c)3/2-2/3=(9-4)/6=5/6
d)8/7-5/6=(48-35)/42=13/42
e)1/6-1/9=(9-6)/54=3/54=1/18
2.- 5 restas con fracciones heterogenas para horita
1
a) ( 3+1/2) +(4+3/5)+(6+2/3)=
7/2 + 23/5 20/3 =(105+138+200)/30=443/30
mcm=30
b) ( 4+1/2) +(1+3/4)+(7+1/3)=
9/2 + 7/4 22/3 =(54+21+88)/30=163/12
mcm=12
c) ( 5+1/5) +(3+1/3)+(7+1/4)=
26/5 + 10/3 29/4 =(312+200+435)/60=947/60
mcm=60
d ( 4+1/5) +(5+1/2)+(7+1/3)=
22/5 + 11/2 22/3 =(132+165+220)/30=517/30
mcm=30
e) ( 2+1/6) +(8+1/4)+(9+2/3)=
13/6 + 33/4 29/3 =(26+99+116)/12=241/12
mcm=12
a)5/7+3/5=(25+21)/35=46/35
b)3/5+4/9=(27+20)/45=47/45
c)1/2+2/3+1/4=(6+8+3)/12=17/12
d)3/7+5/3+1/21=(9+35+1)/21=45/21=15/7
e)1/6+1/4+3/5=(10+15+36)/60=61/60
2)
a)5/7-3/5=(25-21)/35=4/35
b)3/5-4/9=(27-20)/45=7/45
c)3/2-2/3=(9-4)/6=5/6
d)8/7-5/6=(48-35)/42=13/42
e)1/6-1/9=(9-6)/54=3/54=1/18
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