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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica (shelfmarks Leibn. Marg. 100:1/2, Stück 1; Leibn. Marg. 100:1/2)
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Cap. XL IV. RH SLAATBIS.
Si Fractio ordinaria quaeris, ad partes Sexagesimales reducenda lic: Ducto Reductio
Numeratore in 60, per Denominatorem al , e SoeS IHIBICABIE MI- S. actroM.
nuca: Sceliduum aurem aeros, t eed HI, I 60 duetum, ee per Denomina- 9
te
in 60 ducantur, e producta per Commenem nato n aC C. males. Lt
lalcem vero pronua accumendum crit.
torem (tractionis dacae) diritum, extribebic in Ouociente Minuta secunda: EL
lic deinceps minuta tercia, quarta, dec. prodibune, si dirisionum relidua semper sexacesi
victaneur: Ouod cousque taciendum. eric, donec vel nullum supersic reliduum, contra.
vel quod (ob operacionem jam lacis concinuatam) neolisi postic. Quod enim
de Decimalibus modo dictum clt, idem de in Sexagenariis tractionibus lapissime
fic; nempe nunc in infinitum, nunc salcem in nimis lonsum procedendum ese,
priusquam toca Fractio expolica plane Caaal. Guo Calu plo alcau relo,
Sic  = MIn: 12. 30. Paeil. Or calculo paret. Hoc modo.
2
160
24) 120 (30
260
24) 300 (12 57
Vel eriam.
4) 300 (12 1 = 12
X60
2) 60 (30.
e  = tll. 38. 10. 54. 3211. ec. = M1. 38. 21. tere. Nau
260
22) 420 (38 2
10
X60
F2) 600 (54 4.
260
22) 120(1 11.
X60
L2)360 (32 1.
Partes autem Sexacelimales ad Practiones ordinarias, reducuntur: A reductis
omnibus ad Scrupulorum ulcimam denominationem, COrLIqLe nUMETO PEO NU-
octendir quoc ictius ordinis lecipuli in uno Allesio conrinentur. SIC 12. 30. le
ducuntur ad tractionem ordinartam 33. Iloc modo
meratore Tumpto, conornus scribatur Denominator; nempe numerus ille qui
X60
X60
0
260
3600
Cum enum lingula mimuta prima contmmeant 60 lecunda, 12. prima CouMCBuN
cableur.
720 secunda, quibus addicis aliis secundis 30, erit secundorum numerus 750. AC
vero in uno Inceoro concinentur Minuta prima 50, adeoque minuta Secunda 3600:
Sunc ergo illa ad unum incesrum; uc 750 ad 3600, hoc est (reductione facta
Decima-
ad minimos terminos) ut 5 ad 24. Adeoque 12. 30. =
Est autem usuis parcium decimalium incredibili fere dilferencia magis compest. lium usus
diosus, quam parcium sexagelimalium. Quod rel unico hoc exemplo Paris indt quam
Potiio quod Solis curtus annuus, per integrum Zodiaei circulum, ablolvatur malium
et
diebus 365, horis 5, minuris 45, 10, 46: quaeritur quantus sic illius morus cl expedi-
urnus medius. Hoc elt, juxta leses exita acca,  tempuis aniruuti 503 3 3 3tior.
ad morum diurnum, sradullu quor?
Sexacest
49, 20,46; ad tempus diurnum, 24..  BS anuus medius, GraduuIm 360;
Guonta