Math, asked by kanchan2198, 1 year ago

simplify 2.1 bar - 2.10bar

Answers

Answered by RudrakshiNanda
4

So...

Let 2.111..=x

100x=211.111..

Now,100x-x=211.11..-2.11..

99x=209

x=209/9

Similarly, Let 2.1010...be y

100y=210.1010...

Now,100y - y=210.1010..-2.1010...

99y=208

y=208/99

Now 2.111...-2.1010...

209/99-208/99

1/99(Ans)


kanchan2198: but the answer is 1/99
RudrakshiNanda: how
RudrakshiNanda: ??
RudrakshiNanda: Sorry its done
kanchan2198: hmm i understand
RudrakshiNanda: now its ok
RudrakshiNanda: chck
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