3

Say you want to calculate how many percent 50 of 200 is:

50 / 200 = 0.25 = 25%

What do you call the individual pieces (50, 200, 0.25 and 25%) of this calculation?

Are the following terms (based on a direct translation from German) appropriate?

  • Base value for 200 (from "Grundwert")
  • Percent value for 50 (from "Prozentwert")
  • Ratio for 0.25 (from "Verhältnis")
  • Percentage for 25% (from "Prozentsatz")
  • 5
    Ratio and percentage are appropriate. The others are not. – Peter Shor Jun 17 '17 at 12:41
  • 3
    The terms used for the first two are normally context specific. For the 200, 'population' is a general term. For the 50, 'instances', 'hits', 'occurrences', or "counts". And using 'ratio' for 0.25 is a bit sloppy for formal situations. 50:150 is a ratio that evaluates to 0.25 (or 0.333, it depends - 50 apples and 150 oranges or 50 tooth drive gear and 150 tooth follower gear). 2:3:8:20 is a ratio of four things, perhaps paint pigments - what does that evaluate to? If you choose to express a ratio of two things as a fraction, just use the terms for fractions - numerator and denominator. – Phil Sweet Jun 17 '17 at 13:36
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    @Phil Sweet 'Corresponds to' rather than 'evaluates to': a ratio is a static comparison between two elements whereas a quotient is the single-element result of a binary operation. Evaluation in maths demands a working out. – Edwin Ashworth Jun 17 '17 at 14:06
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    Regarding 50 / 200 as a single element (a rational number), 50 is the numerator and 200 the denominator of the fraction. Regarding it as a variant of 50 ÷ 200, 50 is the dividend and 200 the divisor. // 200 is certainly the base (figure), but '50 out of 200' is just about the only way to describe the 50 in these terms. // 25% and 0.25 are the percentage equivalent and decimal equivalent of the common fraction 50/200 (= 1/4 in simplest form). – Edwin Ashworth Jun 17 '17 at 14:16
  • In my job as an analyst, we would call 50 the numerator and 200 the denominator. As in saying 50 divided by 200. – D Hursey Jun 23 '17 at 11:44
2

Preserving Edwin's comment:

Regarding 50 / 200 as a single element (a rational number), 50 is the numerator and 200 the denominator of the fraction.

Regarding it as a variant of 50 ÷ 200, 50 is the dividend and 200 the divisor.

200 is certainly the base (figure), but '50 out of 200' is just about the only way to describe the 50 in these terms.

25% and 0.25 are the percentage equivalent and decimal equivalent of the common fraction 50/200 (= 1/4 in simplest form).

Edwin is a retired maths teacher with a degree in chemistry.

  • Other terms would be part/whole for 50/200, proportion for .25. – Acccumulation Sep 21 '17 at 16:41

protected by tchrist Jul 29 '17 at 22:47

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