Register
0.21212121... as a fraction
122k views
5 votes
0.21212121... as a fraction

User Rajorshi
by
4.3k points

1 Answer

1 vote

If x = 0.212121…, then 100x = 21.212121…, so we have

100x - x = 21.212121… - 0.212121…

99x = 21

x = 21/99 = 7/33

User Sachsure
by
3.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.7m questions

6.1m answers

Other Questions

I need to simplify this expression.
Which property is shown in the problem below? -8(x-3y-9) = -8x+24y+72 A the associative property B the commutative property C the distributive property D the division property ASAP
What is the domain and range?
What does translation means in math? I am taking a quiz on this right now, I need an answer ASAP!!!!!!
If in circle A is 60°, what is m∠BDC? A. 60 B. 45 C. 30 D. 25
Link Copied!