16.012011

# What is 0.21212121.... as a fraction

PazKlohr643
Mathematics
2 18

What is 0.21212121.... as a fraction

If we make the number equal to x... 0.21212121.... = x multiply each side by 100 21.212121.... = 100x remember that x is 0.21212121? we can subtract that now from 21.21212121, as well as x from 100. 21.212121... - 0.212121... = 100x - x we are left with 21 = 99x 21 = 99x simplify.... 7 = 33x and divide! 7/33 = x Your answer is: 0.2121212121.... = 7/33