->S^i ) »P ( IJ 



fiuc I =z 3' 



8 — 25 



12 - etc. 

 vbi dcDominator dcbet eflfc z=. 3, vnde fit 



1 2 — etc. 

 cuius detiominator debet eflb in 5, vjide fit 



1(5— 81 



20 — etc. 

 ex quo ordinc facile veritas perfpicitur. 



§. 22. Sumamus azr^ ct yiz:! ct nancifccmur 

 Iiajic fra^flionem: 



— I -H-.L — 3— 4. 1 



/3 



13-4-9 



23-4 25 



33-4-49 



43 - etc, 

 Sin autcm accipiamus az=:$ ct Y ::=: i crit 



6 



-I -f----z= 8 -9. I 

 f z 



28-9-9 



48 - 9- 25 



68 — ^. 49 



88 — ctc. 



C 2 IVEuo- 



