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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis (shelfmarks Leibn. Marg. 100:1/2, Stück 2; Leibn. Marg. 100:1/2)
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Cap. XNIII.
Acque Lic lemper sumentuo Guotee velo prour (sre lc julto major
Bre justo minor) difterentiamque d mulciplo inde denominato (sire excestiram
Tire detectiram) pro proximo dirisore. Sed hoc obiter.
Fademque (pro numeris) mechodus, adhiberi non raro porest pro communi
mentura in Speciebus exquirenda. Sed Pagacitate aliqua opus erit hac in re
pro diritionibus rire ordinandis, se electione quorientum. Hujus exempla rideas
apud Franciscum Schotenium, in fuis Principiis Mathesios Oniversalis.
Fractiones (divertinomines) ad communem denominationem reducuntur, diri
dendo primitus (si opus Fueric) ucrumque denominatorem per eorum commu-
nem menturam; acque cum, per alternos quotos mulciplicando urriusque tex-
minOs.
Aique in tractionibus sic ad communem denominationem reductis, Additio aut
Subductio instimitur, addendo aut subducendo carum numeratores, Tubseripio
denominatore communi jam inVento. FF, Si incesri parcibus linc immixti, scor-
tim tamen sunt numerandi.
la 2 l 2. b a L1.
eta, relina
16
Sie, Si aedendae sine = et 2. -, sent 3 -. Aque haC TumMA ex C = Subdu-
2
Et in Speciebus similiter.
Notandum tamen, quod, de Denominatoribus per maximam communem men
furam primitus dividendis, dictum .  LCMIe opus esse. Lc quod
etiam, ubi cali reduetione locus e pole ca ret cullo omnu ret penp. Mul-
riplicatis leilicet utriulgue tractlonto cuugue terminis, in alce aio
rem, arque tum addendo auc tubducendo noros numeratores, u n
deno-
non raro, jam sint in minimis leo  cale seductionen paltantu. Lun