91 Divisio \({2 \over 5}\) 171 per \({3 \over 4}\) 13184

Et si \({2 \over 5}\) 171 per \({3 \over 4}\) 13 dividere volueris, divide 3428 per regulam de
descriptio utriusque divisionis
3428 275
\({2 \over 5}\) 171 \({3 \over 4}\) 13
\({3~~0~~5\phantom{1} \over 5~~5~~11}\) 12
\({3~~68\phantom{7} \over 4~~857}\)
185 275, que est \({1~~0~~0\phantom{1} \over 5~~5~~11}\), exibunt \({3~~0~~5\phantom{1} \over 5~~5~~11}\) 12 pro quesita divisione, quorum pensa debet esse 5 per 7, sicut est de 3428 que dividuntur. Et si \({3 \over 4}\) 13 per \({2 \over 5}\) 171 dividere volueris, divide 275 per regulam de 3428, que est \({1~~0\phantom{57} \over 4~~857}\): exibunt \({3~~\phantom{8}68 \over 4~~857}\)186 unius integri, quorum ruptorum pensa per septenarium est 2, sicuti fuit de 275.

  • 184Divisio (Divisio de R) \({2 \over 5}\) 171 per \({3 \over 4}\) 13:   om. S
  • 185
    descriptio utriusque divisionis (descriptio utriusque divisionis:   om. S)
    3428 (3428:   om. F) 275 (275:   om. F)
    ⑤ (⑤:   om. F) ② (②:   om. F)
    \({2 \over 5}\) 171 \({3 \over 4}\) 13
    \({3~~0~~5\phantom{1} \over 5~~5~~11}\) 12 (\({3~~0~~5\phantom{1} \over 5~~5~~11}\) 12:   om. F   post \({0~~0~~5\phantom{1} \over 5~~5~~11} 12\) habet divisio maioris S)
    \({3~~68\phantom{7} \over 4~~857}\) (\({3~~68\phantom{7} \over 4~~857}\):   om. F   post \({3~~\phantom{8}68 \over 4~~857}\) habet divisio minoris S)
    (descriptio utriusque divisionis:   om. S) (3428:   om. F) (275:   om. F) (⑤:   om. F) (②:   om. F) (\({3~~0~~5\phantom{1} \over 5~~5~~11}\) 12:   om. F   post \({0~~0~~5\phantom{1} \over 5~~5~~11} 12\) habet divisio maioris S) (\({3~~68\phantom{7} \over 4~~857}\):   om. F   post \({3~~\phantom{8}68 \over 4~~857}\) habet divisio minoris S) :   om. V
  • 186\({3~~\phantom{8}68 \over 4~~857}\):   \({3~~\phantom{8}67 \over 4~~857}\) F

Liber Abbaci

Instrumenta

Capitulum septimum

Indice