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  2. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    Fractions can be used to represent ratios and division. [1] Thus the fraction ⁠ 3 / 4 ⁠ can be used to represent the ratio 3:4 (the ratio of the part to the whole), and the division 3 ÷ 4 (three divided by four). We can also write negative fractions, which represent the opposite of a positive fraction.

  3. One half - Wikipedia

    en.wikipedia.org/wiki/One_half

    One half is the rational number that lies midway between 0 and 1 on the number line. Multiplication by one half is equivalent to division by two, or "halving"; conversely, division by one half is equivalent to multiplication by two, or "doubling". A square of side length one, here dissected into rectangles whose areas are successive powers of ...

  4. Gill (unit) - Wikipedia

    en.wikipedia.org/wiki/Gill_(unit)

    However, up until 2022 [1] a spirit measure in the Isle of Man is still defined as 1 ⁄ 5 gill (28.4 mL) and 1 ⁄ 6 gill (23.7 mL) in Northern Ireland. [ 2 ] [ 3 ] Half of a gill is a jack, or an eighth of a pint. [ 4 ]

  5. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1. Means "less than or equal to". That is, whatever A and B are, A ≤ B is equivalent to A < B or A = B. 2. Between two groups, may mean that the first one is a subgroup of the second one. ≥ 1. Means "greater than or equal to".

  6. Equals sign - Wikipedia

    en.wikipedia.org/wiki/Equals_sign

    The equals sign (British English) or equal sign (American English), also known as the equality sign, is the mathematical symbol =, which is used to indicate equality in some well-defined sense. [1] In an equation , it is placed between two expressions that have the same value, or for which one studies the conditions under which they have the ...

  7. Dotted note - Wikipedia

    en.wikipedia.org/wiki/Dotted_note

    4), contains running semiquavers (sixteenth notes) in the left hand. Several times during the piece Chopin asks for the right hand to play a triple-dotted minim (half note), lasting 15 semiquavers, simultaneously with the first left-hand semiquaver, then one semiquaver simultaneously with the 16th left-hand semiquaver.

  8. 3/4 - Wikipedia

    en.wikipedia.org/wiki/3/4

    3/4 or 3 ⁄ 4 or ¾ may refer to: The fraction three quarters (3 ⁄ 4) equal to 0.75; Arts and media. 3/4, a 2017 Bulgarian film; 3 4 time, a form of triple metre ...

  9. Parity (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Parity_(mathematics)

    An integer is even if it is divisible by 2, and odd if it is not. [1] For example, −4, 0, and 82 are even numbers, while −3, 5, 7, and 21 are odd numbers. The above definition of parity applies only to integer numbers, hence it cannot be applied to numbers like 1/2 or 4.201.