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  2. English numerals - Wikipedia

    en.wikipedia.org/wiki/English_numerals

    Fractions together with an integer are read as follows: 1 + 1 ⁄ 2 is "one and a half" 6 + 1 ⁄ 4 is "six and a quarter" 7 + 5 ⁄ 8 is "seven and five eighths" A space is placed to mark the boundary between the whole number and the fraction part unless superscripts and subscripts are used; for example: 9 1/2; 9 + 1 ⁄ 2 ⁠9 + 1 / 2 ⁠

  3. Metric prefix - Wikipedia

    en.wikipedia.org/wiki/Metric_prefix

    A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic.Each prefix has a unique symbol that is prepended to any unit symbol.

  4. Ratio - Wikipedia

    en.wikipedia.org/wiki/Ratio

    More recent widescreen TVs have a 16:9 aspect ratio, or 1.78 rounded to two decimal places. One of the popular widescreen movie formats is 2.35:1 or simply 2.35. Representing ratios as decimal fractions simplifies their comparison. When comparing 1.33, 1.78 and 2.35, it is obvious which format offers wider image.

  5. Number needed to treat - Wikipedia

    en.wikipedia.org/wiki/Number_needed_to_treat

    Upload file; Special pages; Search. Search. ... 0.75, or 75% Preventable fraction among the unexposed: PFu ... 0.75 Odds ratio: OR (EE / EN) / (CE / CN) 0.167 Modern ...

  6. List of drill and tap sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

    The major minus pitch technique also works for inch-based threads, but you must first calculate the pitch by converting the fraction of threads-per-inch (TPI) into a decimal. For example, a screw with a pitch of 1/20 in (20 threads per inch) has a pitch of 0.050 in and a 1 ⁄ 13 in pitch (13 threads per inch) has a pitch of 0.077 in.

  7. Quartile - Wikipedia

    en.wikipedia.org/wiki/Quartile

    The third quartile (Q 3) is the 75th percentile where lowest 75% data is below this point. It is known as the upper quartile, as 75% of the data lies below this point. [1] Along with the minimum and maximum of the data (which are also quartiles), the three quartiles described above provide a five-number summary of the data.

  8. Quarter dollar - Wikipedia

    en.wikipedia.org/wiki/Quarter_dollar

    75% copper 25% nickel Ribbed British monarch Value, year of minting, "East Caribbean States", sailing ship 2002: Antigua and Barbuda: XCD: 24.0 mm N/A 6.5 g 75% copper 25% nickel Ribbed British monarch Value, year of minting, "East Caribbean States", sailing ship 2002: Barbados: BBD: 23.7 mm 1.8 mm 5.1 g Nickel-plated steel Reeded Coat of arms ...

  9. Metrication in Australia - Wikipedia

    en.wikipedia.org/wiki/Metrication_in_Australia

    In 1968, more than 75% of Australia's exports went to metric countries, and at that time it was noted that all countries (except the United States) were metric or were converting to the metric system. It was also noted that because of Australia's large migrant program, more than 10 percent of people over 16 years of age had used the metric ...