The vvell spryng of sciences whiche teacheth the perfecte woorke and practise of arithmeticke, bothe in whole nombers and fractions, with suche easie and compendious instruction into the said arte, as hath not heretofore been by any sette out nor laboured. Beautified with moste necessary rules and questions, not onely profitable for marchauntes, but also for all artificers, as in the table doeth partlie appere: set forthe by Humfrey Baker citezeine of Lo[n]don.
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Title
The vvell spryng of sciences whiche teacheth the perfecte woorke and practise of arithmeticke, bothe in whole nombers and fractions, with suche easie and compendious instruction into the said arte, as hath not heretofore been by any sette out nor laboured. Beautified with moste necessary rules and questions, not onely profitable for marchauntes, but also for all artificers, as in the table doeth partlie appere: set forthe by Humfrey Baker citezeine of Lo[n]don.
Author
Baker, Humfrey, fl. 1557-1587.
Publication
Imprinted at London :: By Ihon Kyngston, for Iames Rowbothum,
M.D.LXVIII. [1568]
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Subject terms
Arithmetic -- Early works to 1900.
Weights and measures -- Early works to 1800.
Link to this Item
http://name.umdl.umich.edu/A01957.0001.001
Cite this Item
"The vvell spryng of sciences whiche teacheth the perfecte woorke and practise of arithmeticke, bothe in whole nombers and fractions, with suche easie and compendious instruction into the said arte, as hath not heretofore been by any sette out nor laboured. Beautified with moste necessary rules and questions, not onely profitable for marchauntes, but also for all artificers, as in the table doeth partlie appere: set forthe by Humfrey Baker citezeine of Lo[n]don." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A01957.0001.001. University of Michigan Library Digital Collections. Accessed June 17, 2024.
Pages
¶ An other example of the same reduction, and of the se∣conde reduction.
IF you will reduce. ⅔. of. 5/4. of ⅘. the 5/4. of 5/7: and the ½. of the ½. of the. ⅔. of the. ⅓. Firste, it behoueth you of euery partie of the broken nōbers, to make of eche of them one broken, as by the third re∣duction is taughte: That is to saie, in multipliyng the numerators by nu∣merators, and denominators by de∣nominators: firste, for the firste parte, whiche is ⅔. of ¼. of ⅘, you muste as is said before, multiplie. 2 by. 1. and then by. 4. and you shall haue. 8. for the nu∣merator, likewise multiplie. 3. by. 4. and the producte by. 5. and you shall
haue. 60. for the denominator, so thei make. 8/60. whiche beyng abreuied, are 2/15 for the first parte, that is to saie, for the ⅔ of 〈◊〉〈◊〉 of ⅘, secondly for the ¾ of 5/7 multiplie likewise the numerator. 3. by. 5 maketh. 15. for the numerator, and multiplie. 4. by. 7. maketh. 28. for the denominator, and then thei bee. 15/28. for the seconde parte, that is to saie, for the ¾ of 5/7. Thirdly, for the ½ of ½ of ⅔ of ⅓. multiplie the numerators thone by the other, that is to saie. 1. by. 1. and then by. 2. and laste by. 1. and all ma∣keth but 2 for the numerator, likewise multiplie. 2. by. 2. maketh. 4. and 4. by 3. maketh. 12. and then. 12. by. 3. ma∣keth. 36. for the denominator, and thei are 2/36, whiche beyng abreuied maketh 1/18. for the thirde parte, that is to saie, for ½ of the ½. of ⅔ of ⅓. Last of al, take the 2/15 the 15/28. and the 1/18. and reduce them according to the order of the second re∣duction, and you shall finde 1000/7••60. for the 2/15. And 4050/••500 for the 15/28. And 426/7560 for 1/18: and thus are broken nombers of broken,