anitakozyarsky anitakozyarsky
  • 26-03-2015
  • Mathematics
contestada

how do you write 1.21 as fraction, when .21 is continuing?

Respuesta :

naǫ
naǫ naǫ
  • 26-03-2015
[tex]x=1.212121... \\ 100x=121.2121... \\ 100x-x=121.2121...-1.212121... \\ 99x=120 \\ x=\frac{120}{99} \\ x=\frac{40 \times 3}{33 \times 3} \\ x=\frac{40}{33}[/tex]

The fraction is 40/33.
Answer Link

Otras preguntas

the kind of lake that formed when a river meanders
A drawing of a surfboard in a catalog shows it's length as 8 4/9 inches. Find the actual length of the surfboard if 1/2 inch length on the drawing corresponds t
What modern day country is located where Mesopotamia was located
How did its first pharaoh unify Egypt
homophones for the words insignificant and small.  has to be 5 letters
What is the initials for sodium chloride
choose the plural noun that's spelled correctly?A Fathers-in-lawD Editor in chiefs
how did other nations contribute to the american revolution?
Sylvan withdrew 2/5 of the amount in his savings account, and spent 7/10 of that money.  What fraction of his total savings does he still have?
A drawing of a surfboard in a catalog shows it's length as 8 4/9 inches. Find the actual length of the surfboard if 1/2 inch length on the drawing corresponds t