RESUELVA LAS SIGUIENTES OPERACIONES:

a) 5/8+2/14
b)7/10+(-1/5)
c/ -3/9+(-5/12)
d)-1/5+2/7
e) 10/4-8/5
f) 5/12-5/6
g)-2/5-5/10
h) 1/3+8/5+6/4+13/30
i)7/2+6/3-11/4

Respuestas

Respuesta dada por: 05LIR
6

a

 \frac{5}{8}  +  \frac{2}{14}  =  \frac{35}{56}  +  \frac{8}{56}  =  \frac{43}{56}

b

 \frac{7}{10}  + ( \frac{ - 1}{5} ) =  \\  \frac{7}{10}    + ( \frac{  - 2}{10} ) =  \\  \frac{5}{10}  =  \frac{1}{2}

c

 \frac{ - 3}{9}  + ( \frac{ - 5}{12} ) =   \\ \frac{ - 12}{36}   +  ( \frac{ - 15}{36} ) =   \\ \frac{ - 27}{36}  =   \frac{ - 3}{4}

d

 \frac{ - 1}{5}  +  \frac{2}{7}  =  \frac{ - 7}{35}  +  \frac{10}{35}  =  \frac{3}{35}

e

 \frac{10}{4}  -  \frac{8}{5}  =  \frac{50}{20}  -  \frac{32}{20}  =  \frac{18}{20}  =  \frac{9}{10}

f

 \frac{5}{12}  -  \frac{5}{6}  =  \frac{5}{12}  -  \frac{10}{12}  =  \frac{ - 5}{12}

g

 \frac{ - 2}{5}  -  \frac{5}{10}  =  \frac{ - 4}{10}  -  \frac{5}{10}  =  \frac{ - 9}{10}

h

 \frac{1}{3}  +  \frac{8}{5}  +  \frac{6}{4} +  \frac{13}{30}   =  \\  \frac{20}{60}  +  \frac{96}{60}  +  \frac{90}{60}  +  \frac{26}{60}  =  \\  \frac{232}{60}  =  \frac{58}{15}

i

 \frac{7}{2}  +  \frac{6}{3}  -  \frac{11}{4}  =  \\  \frac{42}{12}  +  \frac{24}{12}  -  \frac{33}{12}  =  \\  \frac{33}{12}  =  \frac{11}{4}

Respuesta dada por: Letca
3
a) 5/8 + 2/14 =
m.c.m= 56
35/56 + 8/56 = 43/56

b) 7/10 + (-1/5) =
m.c.m= 10
7/10 - 1/5
7/10 - 2/10 = 5/10
Simplificado= 1/2
c) -3/9 + (-5/12) =
m.c.m = 36
-3/9 - 5/12
-12/36 - 15/36 = -27/36
Simplificado= -3/4
d) -1/5 + 2/7 +
m.c.m= 35
7/35 + 10/35 = 3/35
e) 10/4 - 8/5 =
m.c.m= 20
50/20 - 32/20 = 18/20
Simplificado= 9/10
f) 5/12 - 5/6=
m.c.m= 12
5/12 - 10/12 = -5/12
g) -2/5 - 5/10=
m.c.m = 10
-4/10 - 5/10 = -9/10
h) 1/3 + 8/5 + 6/4 + 13/30=
m.c.m= 60
20/60 + 96/60 + 90/60 + 26/60 = 232/60
Simplificado= 58/15
i) 7/2 + 6/3 - 11/4 =
m.c.m= 12
42/12 + 24/12 - 33/12= 33/12
Simplificado= 11/4
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