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Sagot :
Olá,
a)[tex] \frac{2}{3} + \frac{5}{4} - \frac{1}{2} =[/tex]
[tex] \frac{2}{3} + \frac{3}{4}= [/tex]
[tex] \frac{17}{12} [/tex]
cálculos:
m.m.c
4,2|2
2,1|2
1,1|__
4>>>>>>>>(4:4.5)
>>>>>>>>>>>[tex]+ \frac{5}{4} - \frac{2}{4} = \frac{3}{4} [/tex]
>>>>>>>>(4:2.1)
m.m.c
3,4|2
3,2|2
3,1|3
1,1|___
12>>>>>>>>(12:3.2)
>>>>>>>>>[tex] \frac{8}{12} + \frac{9}{12}= \frac{17}{12} [/tex]
>>>>>>>>(12:4.3)
____________________________________________________________________
b)[tex] \frac{1}{2} . \frac{3}{5} +- \frac{2}{1} =[/tex]
[tex] \frac{3}{10} - \frac{2}{1} = [/tex]
[tex] \frac{-17}{10} [/tex]
cálculos:
m.m.c
10,1|2
5,1 |5
1,1 |__
10>>>>>(10:10.3)
>>>>>>>>>[tex] \frac{3}{10} - \frac{20}{10} =\frac{-17}{10} [/tex]
>>>>>>(10:1.2)
____________________________________________________________________
c)[tex] \frac{1}{3} + \frac{2}{5} +\frac{1}{2} . \frac{2}{3} [/tex]
[tex] \frac{11}{15} + \frac{2}{6} =[/tex]
[tex] \frac{32}{30} simplificado= \frac{16}{15} [/tex]
cálculos:
m.m.c
3,5|3
1,5|5
1,1|__
15>>>>>>(15:3.1)
>>>>>>>>[tex] \frac{5}{15} + \frac{6}{15} = \frac{11}{15} [/tex]
>>>>>>(15:5.2)
m.m.c
15,6|2
15,3|3
5,1 |5
1,1 |__
30 >>>>>>(30:15.11)
>>>>>>>>[tex] \frac{22}{30} + \frac{10}{30} = \frac{32}{30} [/tex]
>>>>>>>>(30:6.2)
ESPERO TER AJUDADO!!! :)
a)[tex] \frac{2}{3} + \frac{5}{4} - \frac{1}{2} =[/tex]
[tex] \frac{2}{3} + \frac{3}{4}= [/tex]
[tex] \frac{17}{12} [/tex]
cálculos:
m.m.c
4,2|2
2,1|2
1,1|__
4>>>>>>>>(4:4.5)
>>>>>>>>>>>[tex]+ \frac{5}{4} - \frac{2}{4} = \frac{3}{4} [/tex]
>>>>>>>>(4:2.1)
m.m.c
3,4|2
3,2|2
3,1|3
1,1|___
12>>>>>>>>(12:3.2)
>>>>>>>>>[tex] \frac{8}{12} + \frac{9}{12}= \frac{17}{12} [/tex]
>>>>>>>>(12:4.3)
____________________________________________________________________
b)[tex] \frac{1}{2} . \frac{3}{5} +- \frac{2}{1} =[/tex]
[tex] \frac{3}{10} - \frac{2}{1} = [/tex]
[tex] \frac{-17}{10} [/tex]
cálculos:
m.m.c
10,1|2
5,1 |5
1,1 |__
10>>>>>(10:10.3)
>>>>>>>>>[tex] \frac{3}{10} - \frac{20}{10} =\frac{-17}{10} [/tex]
>>>>>>(10:1.2)
____________________________________________________________________
c)[tex] \frac{1}{3} + \frac{2}{5} +\frac{1}{2} . \frac{2}{3} [/tex]
[tex] \frac{11}{15} + \frac{2}{6} =[/tex]
[tex] \frac{32}{30} simplificado= \frac{16}{15} [/tex]
cálculos:
m.m.c
3,5|3
1,5|5
1,1|__
15>>>>>>(15:3.1)
>>>>>>>>[tex] \frac{5}{15} + \frac{6}{15} = \frac{11}{15} [/tex]
>>>>>>(15:5.2)
m.m.c
15,6|2
15,3|3
5,1 |5
1,1 |__
30 >>>>>>(30:15.11)
>>>>>>>>[tex] \frac{22}{30} + \frac{10}{30} = \frac{32}{30} [/tex]
>>>>>>>>(30:6.2)
ESPERO TER AJUDADO!!! :)
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