275 De torscello

Si torscellus, qui est canne 60 Provincie, hoc est de palmis 8, venditur pro libris 35,

£ can. 35 60 s.   \({2~~11 \over 3~~20}\) 1

⁷³⁷ et queratur quantum valeat canna una, describe questionem ut hic ostenditur⁷³⁸, et multiplica 1 per 35 et divide per regulam de 60, que est \({1~~\phantom{1}0 \over 6~~10}\), vel \({1~~\phantom{1}0 \over 3~~20}\) quod est melius hic, ideo quia indigemus habere \({1 \over 20}\) in capite virgule: exibunt \({2~~11 \over 3~~20}\), hoc est soldi 11 et denarii 8, ut in questione ostenditur⁷³⁹. Et ex hoc quidem manifestum est quod quot fuerint libre pretii torscelli⁷⁴⁰, tot tertias unius soldi valet canna una.

276 De eodem⁷⁴¹

Item si eadem ratione queres quantum valeat palmus, facies de palmo partem

£ can. 35 60 d. s. pal. \({1~~\phantom{1}5~~\phantom{1}1 \over 2~~12~~20}\) \({1 \over 8}\)

⁷⁴² unius canne, eruntque⁷⁴³ \({1 \over 8}\). Describe ergo questionem sic, et multiplica 1 quod est super 8 per 35; erunt 35, que divide per 60 et per 8 [V:46r] que sunt sub virgula, coaptans ea sic: \({1~~\phantom{1}0~~\phantom{1}0 \over 2~~12~~20}\), ideo⁷⁴⁴ quia locus in quo ponenda est summa est sub libris, videlicet sub 35: exibit⁷⁴⁵ \({1~~\phantom{1}5~~\phantom{1}1 \over 2~~12~~20}\), hoc est denarii \({1 \over 2}\) 17. Ex⁷⁴⁶ hoc ergo manifestum est quia quot libras valet torscellus, tot obulos valet palmus.

277 De eodem⁷⁴⁷

Item torscellus venditur pro libris \({9 \over 20}\) 37, et queratur quantum valeant canne

749 £ can. \({9 \over 20}\) 37 60 d. s. £ 301 \({1~~4~~\phantom{1}0~~\phantom{1}5~~17 \over 2~~8~~10~~12~~20}\) 5 \({1~~3 \over 4~~8}\) 9

⁷⁴⁸ 9 et palmi \({1 \over 4}\) 3, hoc est canne \({1~~3 \over 4~~8}\) 9. Describe questionem sic, et multiplicabis \({1~~3 \over 4~~8}\) 9 per \({9 \over 20}\) 37 et divides per 60: exibunt libre \({1~~4~~\phantom{1}0~~\phantom{1}5~~17 \over 2~~8~~10~~12~~20}\) 5, ut in questione ostenditur⁷⁴⁹.