Question

How do we know $p/q$ can be expressed as a terminating fraction in base $B$ only if prime factors of $q$ are prime factors of $B$?

score 310 · Answer 1 · 2026-04-03 06:55:24

310

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How do we know $p/q$ can be expressed as a terminating fraction in base $B$ only if prime factors of $q$ are prime factors of $B$?

Published on 03 Apr 2026 - 6:55

score 2.5k · Answer 2 · 2013-07-01 17:40:35

2.5k

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Ceiling to Floor Function Conversion Proof

Published on 01 Jul 2013 - 17:40

score 164 · Answer 3 · 2013-07-09 02:57:28

164

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Trigonometric functions of rational fractions of pi

Published on 09 Jul 2013 - 2:57

score 246 · Answer 4 · 2026-02-25 01:53:56

246

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How to solve a ratio question

Published on 25 Feb 2026 - 1:53

score 24.2k · Answer 5 · 2013-07-14 01:20:08

24.2k

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Numbers that cannot be expressed as fractions

Published on 14 Jul 2013 - 1:20

score 223 · Answer 6 · 2013-07-19 13:57:30

223

Views

Canceling in fractions sometimes gives a wrong result

Published on 19 Jul 2013 - 13:57

score 338 · Answer 7 · 2013-07-23 09:47:56

338

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Simplifying compound fraction: $\frac{3}{\sqrt{5}/5}$

Published on 23 Jul 2013 - 9:47

score 128 · Answer 8 · 2013-08-03 23:00:47

128

Views

Question involving approximation, taylor series and proving

Published on 03 Aug 2013 - 23:00

score 963 · Answer 9 · 2013-08-05 15:13:30

963

Views

Simplify $\left({\sum_{k=1}^{2499}\sqrt{10+{\sqrt{50+\sqrt{k}}}}}\right)\left({\sum_{k=1}^{2499}\sqrt{10-{\sqrt{50+\sqrt{k}}}}}\right)^{-1}$

Published on 05 Aug 2013 - 15:13

score 98 · Answer 10 · 2013-08-09 22:33:09

98

Views

Turn a number $x$ into a fraction with a denominator with no more than $k$ digits

Published on 09 Aug 2013 - 22:33

score 1.6k · Answer 11 · 2013-08-10 15:07:11

1.6k

Views

Why does this ratio of sums of square roots equal $1+\sqrt2+\sqrt{4+2\sqrt2}=\cot\frac\pi{16}$ for any natural number $n$?

Published on 10 Aug 2013 - 15:07

score 2.7k · Answer 12 · 2013-08-12 08:02:48

2.7k

Views

Finding percentage which is less

Published on 12 Aug 2013 - 8:02

score 424 · Answer 13 · 2026-04-02 12:07:26

424

Views

To how many decimals is $\sum_ {k=1}^\infty \frac{k}{\sqrt{k!}} = \frac{49850839\,\pi}{29567947}$ correct?

Published on 02 Apr 2026 - 12:07

score 138 · Answer 14 · 2013-08-16 16:28:01

138

Views

Why does my intuition for "order of divergence" for algebraic fractions fail?

Published on 16 Aug 2013 - 16:28

score 13.3k · Answer 15 · 2013-08-17 18:01:36

13.3k

Views

Bar Notation Problem

Published on 17 Aug 2013 - 18:01

List Question

How do we know $p/q$ can be expressed as a terminating fraction in base $B$ only if prime factors of $q$ are prime factors of $B$?

Ceiling to Floor Function Conversion Proof

Trigonometric functions of rational fractions of pi

How to solve a ratio question

Numbers that cannot be expressed as fractions

Canceling in fractions sometimes gives a wrong result

Simplifying compound fraction: $\frac{3}{\sqrt{5}/5}$

Question involving approximation, taylor series and proving

Simplify $\left({\sum_{k=1}^{2499}\sqrt{10+{\sqrt{50+\sqrt{k}}}}}\right)\left({\sum_{k=1}^{2499}\sqrt{10-{\sqrt{50+\sqrt{k}}}}}\right)^{-1}$

Turn a number $x$ into a fraction with a denominator with no more than $k$ digits

Why does this ratio of sums of square roots equal $1+\sqrt2+\sqrt{4+2\sqrt2}=\cot\frac\pi{16}$ for any natural number $n$?

Finding percentage which is less

To how many decimals is $\sum_ {k=1}^\infty \frac{k}{\sqrt{k!}} = \frac{49850839\,\pi}{29567947}$ correct?

Why does my intuition for "order of divergence" for algebraic fractions fail?

Bar Notation Problem

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