( 2 / 7 + 3 / 2 ) - ( 4 / 5 - 1 / 6)
Soluções para a tarefa
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2/7+3/2
mmc fatorial:
7,2|2
7,1|7
1,1=7x2=14
2/7x2=4/14
2/7x2=4/143/2x7=21/14
- 4/14+21/14=25/14
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4/5-1/6
mmc fatorial:
5,6|5
1,6|6
1,1=5x6=30
4/5x6=24/30
1/6x5=5/30
- 24/30-5/30=19/30
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25/14-19/30
mmc fatorial:
14,30|2
7,15|3
7,5|5
7,1|7
1,1=2x3x5x7=210
25/14x15=375/210
19/30x7=133/210
- 375/210-133/210=242/210
-----------------------------------------
- R=242/210
Respondido por
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Resposta:
. 121/105
Explicação passo a passo:
.
. (2/7 + 3/2) - (4/5 - 1/6) = (eliminando parênteses)
. 2/7 + 3/2 - 4/5 + 1/6 = (m.m.c. = 210)
. 60/210 + 315/210 - 168/210 + 35/210 =
. (60 + 315 - 168 + 35)/210 =
. (410 - 168)/210 =
. 242/210 = (simplifica por 2)
. 121/105
.
(Espero ter colaborado)
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