Question

Which harmonic numbers have prime numerators?

score 856 · Answer 1 · 2026-03-26 11:05:28

856

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Which harmonic numbers have prime numerators?

Published on 26 Mar 2026 - 11:05

score 52 · Answer 2 · 2014-07-03 00:22:20

52

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Solving function in difference quotien equation

Published on 03 Jul 2014 - 0:22

score 276 · Answer 3 · 2014-07-03 07:19:00

276

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Fraction with negative exponent fraction.

Published on 03 Jul 2014 - 7:19

score 20.8k · Answer 4 · 2014-07-03 23:48:54

20.8k

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can fractions be done on a regular caculator?

Published on 03 Jul 2014 - 23:48

score 47 · Answer 5 · 2014-07-04 15:31:30

47

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Non-negative fractions summing to $1$

Published on 04 Jul 2014 - 15:31

score 89 · Answer 6 · 2014-07-06 10:16:54

89

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Fraction exponents in division

Published on 06 Jul 2014 - 10:16

score 722 · Answer 7 · 2014-07-06 13:24:41

722

Views

Simplify $ \frac{18B^2}{A^2-9B^2} - \frac{A}{A+3B} + 2$

Published on 06 Jul 2014 - 13:24

score 570 · Answer 8 · 2014-07-06 20:10:05

570

Views

Simplify $2- {\frac{a\left(1-(\frac{1}{2a})\right)}{0.25}}$

Published on 06 Jul 2014 - 20:10

score 12.6k · Answer 9 · 2014-07-14 14:12:11

12.6k

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Simplify $\frac{\frac{1}{x-1} + \frac{1}{x^2-1}}{x-\frac 2{x + 1}}$

Published on 14 Jul 2014 - 14:12

score 711 · Answer 10 · 2014-07-16 16:00:10

711

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Definition of Rational/ Irrational Numbers reguarding denominators

Published on 16 Jul 2014 - 16:00

score 156 · Answer 11 · 2014-07-24 16:30:10

156

Views

How prove this inequality $\frac{3(x^2+y^2+z^2)}{(x+y+z)^2+2(yz+xz+xy)}\ge\sum\limits_{cyc}\frac{x^2}{x^2+(y+z)^2}$

Published on 24 Jul 2014 - 16:30

score 100 · Answer 12 · 2014-07-26 13:02:07

100

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Resource that teaches everything about fractions

Published on 26 Jul 2014 - 13:02

score 1.8k · Answer 13 · 2014-07-27 18:59:37

1.8k

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How does $-\sqrt {\frac{{2 - \sqrt 2 }}{{2 + \sqrt 2 }}} $ simplify to $1 - \sqrt 2 $?

Published on 27 Jul 2014 - 18:59

score 21.3k · Answer 14 · 2014-07-28 12:48:45

21.3k

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When the numerator of a fraction is increased by $4$, the fraction increases by $2/3$...

Published on 28 Jul 2014 - 12:48

score 147 · Answer 15 · 2014-07-29 01:15:07

147

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A property of proportions: if $a/b=c/d$, then $(ma+nb)/(pa+qb)$ is equal to $ (mc+nd)/(pc+qd)$

Published on 29 Jul 2014 - 1:15

List Question

Which harmonic numbers have prime numerators?

Solving function in difference quotien equation

Fraction with negative exponent fraction.

can fractions be done on a regular caculator?

Non-negative fractions summing to $1$

Fraction exponents in division

Simplify $ \frac{18B^2}{A^2-9B^2} - \frac{A}{A+3B} + 2$

Simplify $2- {\frac{a\left(1-(\frac{1}{2a})\right)}{0.25}}$

Simplify $\frac{\frac{1}{x-1} + \frac{1}{x^2-1}}{x-\frac 2{x + 1}}$

Definition of Rational/ Irrational Numbers reguarding denominators

How prove this inequality $\frac{3(x^2+y^2+z^2)}{(x+y+z)^2+2(yz+xz+xy)}\ge\sum\limits_{cyc}\frac{x^2}{x^2+(y+z)^2}$

Resource that teaches everything about fractions

How does $-\sqrt {\frac{{2 - \sqrt 2 }}{{2 + \sqrt 2 }}} $ simplify to $1 - \sqrt 2 $?

When the numerator of a fraction is increased by $4$, the fraction increases by $2/3$...

A property of proportions: if $a/b=c/d$, then $(ma+nb)/(pa+qb)$ is equal to $ (mc+nd)/(pc+qd)$

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