Chamberlain's Arithmetick being a plain and easie explanation of the most useful and necessary art of arithmetick in whole numbers and fractions, that the meanest capacity may obtain the knowledge thereof in a very short time : whereunto are added many rules and tables of interest, rebate, purchases, gaging of cask, and extraction of the square and cube roots / composed by Robert Chamberlain, accomptant and practitioner in the mathematicks.

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Title: Chamberlain's Arithmetick being a plain and easie explanation of the most useful and necessary art of arithmetick in whole numbers and fractions, that the meanest capacity may obtain the knowledge thereof in a very short time : whereunto are added many rules and tables of interest, rebate, purchases, gaging of cask, and extraction of the square and cube roots / composed by Robert Chamberlain, accomptant and practitioner in the mathematicks.
Author: Chamberlain, Robert, fl. 1678-1679.
Publication: London :: Printed for John Clark ...,; 1679.
Rights/Permissions: To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
Subject terms: Mathematics -- Early works to 1800.
Link to this Item: http://name.umdl.umich.edu/A31565.0001.001
Cite this Item: "Chamberlain's Arithmetick being a plain and easie explanation of the most useful and necessary art of arithmetick in whole numbers and fractions, that the meanest capacity may obtain the knowledge thereof in a very short time : whereunto are added many rules and tables of interest, rebate, purchases, gaging of cask, and extraction of the square and cube roots / composed by Robert Chamberlain, accomptant and practitioner in the mathematicks." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A31565.0001.001. University of Michigan Library Digital Collections. Accessed April 28, 2025.

Pages

Example.

Let it be required to subtract 2/7 of 3/16 of ⅝ from ⅜ of 5/7 of 8/12 by the 6th of the 11, you reduce 2/7 of 3/16 of ⅝ into the Simple Fraction 30/896, and ⅜ of 5/7 of 8/12 into 120/672, now these two single Fractions 30/896 and 120/672, which two Fractions by the 4th of the 11th you may abbreviate to 15/448 and 60/336, then by the 7th of the 11. reduce these two last Fractions into a common Denomi∣nator, and you will make the Fractions 26880/161528 5040/161528 subtract the lesser Nume∣rator 5040 out of the greater 26880, and there remains 21840, which put as a Numerator over the common Denomina∣tor, and you will have the Fraction 21840/161528 which is the difference between the two Compound Fractions 2/7 of 3/16 of ⅝ and ⅜ of 5/7 of 8/12 as was required.