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a fost răspuns

3,(4) + 7,(82) -2,17

Răspuns :

Nico234679ghd
3,(4) =34-3/9= 31/9
7,(82)= 782-7/99=775/99
2,17=217/100

31/9+775/99-217/100=34100+77500-21483/9900=90117/9900 =10013/1100
Rayzen
3,(4) + 7,(82) - 2,17 = 3,(4) - 2,17 + 7,(82) = 1,27(4) + 7,(82) = 9,10(27)


3,(4) - 2,17 = 1,27(4)
 
   3,4444444444.... -
   2,1700000000....
   ----------------------
   1,2744444444

1,27(4) + 7,(82) = 9,10(27)

  1, 274444444444...+
  7,828282828282...
  ---------------------------
  9,102727272726

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