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2. Algebraic fraction - Wikipedia

   en.wikipedia.org/wiki/Algebraic_fraction

   Algebraic fraction. In algebra, an algebraic fraction is a fraction whose numerator and denominator are algebraic expressions. Two examples of algebraic fractions are and . Algebraic fractions are subject to the same laws as arithmetic fractions. A rational fraction is an algebraic fraction whose numerator and denominator are both polynomials.

3. Unit fraction - Wikipedia

   en.wikipedia.org/wiki/Unit_fraction

   Slices of approximately 1/8 of a pizza. A unit fraction is a positive fraction with one as its numerator, 1/ n.It is the multiplicative inverse (reciprocal) of the denominator of the fraction, which must be a positive natural number.

4. Multiplication and repeated addition - Wikipedia

   en.wikipedia.org/wiki/Multiplication_and...

   From the mathematical point of view, multiplication as repeated addition can be extended into fractions. For example, literally calls for “one and three-fourths of the five-sixths.”. This is later significant because students are taught that, in word problems, the word “of” usually indicates a multiplication.

5. Friendly number - Wikipedia

   en.wikipedia.org/wiki/Friendly_number

   In number theory, friendly numbers are two or more natural numbers with a common abundancy index, the ratio between the sum of divisors of a number and the number itself. Two numbers with the same "abundancy" form a friendly pair; n numbers with the same abundancy form a friendly n-tuple. Being mutually friendly is an equivalence relation, and ...

6. Odds - Wikipedia

   en.wikipedia.org/wiki/Odds

   Thus if expressed as a fraction with a numerator of 1, probability and odds differ by exactly 1 in the denominator: a probability of 1 in 100 (1/100 = 1%) is the same as odds of 1 to 99 (1/99 = 0.0101... = 0. 01), while odds of 1 to 100 (1/100 = 0.01) is the same as a probability of 1 in 101 (1/101 = 0.00990099... = 0. 0099). This is a minor ...

7. Music and mathematics - Wikipedia

   en.wikipedia.org/wiki/Music_and_mathematics

   Music and Math by Thomas E. Fiore; Twelve-Tone Musical Scale. Sonantometry or music as math discipline. Music: A Mathematical Offering by Dave Benson. Nicolaus Mercator use of Ratio Theory in Music at Convergence; The Glass Bead Game Hermann Hesse gave music and mathematics a crucial role in the development of his Glass Bead Game. Harmony and ...

8. Time signature - Wikipedia

   en.wikipedia.org/wiki/Time_signature

   Most time signatures consist of two numerals, one stacked above the other: The lower numeral indicates the note value that the signature is counting. This number is always a power of 2 (unless the time signature is irrational), usually 2, 4 or 8, but less often 16 is also used, usually in Baroque music. 2 corresponds to the half note (minim), 4 to the quarter note (crotchet), 8 to the eighth ...

9. Significand - Wikipedia

   en.wikipedia.org/wiki/Significand

   The significand[1] (also coefficient, [1] sometimes argument, [2] or more ambiguously mantissa, [3] fraction, [4][5][nb 1] or characteristic[6][3]) is the first (left) part of a number in scientific notation or related concepts in floating-point representation, consisting of its significant digits. Depending on the interpretation of the ...