71
De143 eodem pro libris et soldis et denariis
Item rotuli 1000 venduntur pro libris \({\phantom{1}5~~\phantom{1}8 \over 12~~20}\) 57; quantum valent
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⑨ £ |
℞ |
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13781 |
1000 |
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\({\phantom{1}5~~\phantom{1}8 \over 12~~20}\) 57 |
⑩ |
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pensa per 11 est ② |
|
| |
527 |
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\({1~~\phantom{1}1~~\phantom{1}3~~\phantom{1}4~~10~~\phantom{1}0 \over 6~~10~~10~~10~~12~~20}\) 5 |
\({5 \over 6}\) 87 |
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144 ergo rotuli \({5 \over 6}\) 87? Descripta itaque questione, multiplica 57 per suam virgulam;
[V:36v] erunt 13781, que pone super 57. Item multiplica 87 per 6 et adde 5; erunt 527, que multiplica per 13781: erunt 7262587, que divide per 1000 et per fractiones reliquorum numerorum, hoc est per \({1~~\phantom{1}0~~\phantom{1}0~~\phantom{1}0~~\phantom{1}0~~\phantom{1}0 \over 6~~10~~10~~10~~12~~20}\): exibunt libre \({1~~\phantom{1}1~~\phantom{1}3~~\phantom{1}4~~10~~\phantom{1}0 \over 6~~10~~10~~10~~12~~20}\) 5.
