The vvell spryng of sciences whiche teacheth the perfecte woorke and practise of arithmeticke, bothe in whole nombers and fractions, with suche easie and compendious instruction into the said arte, as hath not heretofore been by any sette out nor laboured. Beautified with moste necessary rules and questions, not onely profitable for marchauntes, but also for all artificers, as in the table doeth partlie appere: set forthe by Humfrey Baker citezeine of Lo[n]don.

¶ Other necessarie questions dooen by diuision in broken nomber.

I Demaunde what parte. 30. is of. 70. Aunswer: diuide. 30. by 70. whiche you can not, for thei are 30/7••, but abreuiate them and thei are 3/7. Thus. 30. are the 3/7. of. 70.

2. I demaunde what parte. 10. is of 16 ⅔. Aunswere: diuide. 10/〈…〉〈…〉. by. 16 ⅔, and thereof commeth 30/50, whiche beyng a∣breuiated are 〈◊〉〈◊〉. And thus 10. is found to bee ⅗ of. 16. 2/••.

3. More, what parte is. 25. of. 5/••. Aunswere: diuide 5/••. by. 25/10, and there∣of commeth 5/20••, whiche beyng abre∣niated is. 1/40. And thus. 5/••. is but the 1/40. of. 25.

4. More, ⅚ what parte are thei of ⅞ Aunswere: diuide ⅚ by ⅞, and you shal

finde 4••/42 whiche abreuiated are 20/21.

5. More, ⅘ what parte are thei of. 13. 〈◊〉〈◊〉. Aunswer: diuide ⅘ by. 13. ⅓. and you shall finde 12/200, whiche beyng abbre∣uiated are ••/50. And thus 4/1 are the 3/50. of 13. ⅓.

6. More. 12. ½. what parte are thei of. Aunswere: diuide. 12. ½. by 30/••, and you shall finde. ••5/60, whiche beyng abre∣uiated are ••/12, and thus. 12. ½, are the 5/12 of. 30.

7. More. 16. ••/3, what parte are thei of. 57. 1/7. Aunswere: diuide. 16. ⅔ by. 57 ••/7. and therof commeth 550/1200, whiche be∣yng abreuiated are 7/24, and thus. 16. ⅔. are the. 7/24 of. 57. 1/7.

8. More, ••/4 and ⅔ of ••/4, or three quar∣ters, and ⅖ of one quarter, what part are thei of. 1. Aunswere: reduce 5/4, and the ⅔ of ••/4, into one broken by the first reduction, and you shall finde 11/12. And thus the ••/4, and ••/3 of ¼ are the 11/12 of one whole.

9. More, of what nomber are. 9. the 〈◊〉〈◊〉. Aunswere: diuide. 9. by 3/3, and thereof

commeth. 13. ••/2, whiche is the nomber whereof. 9. are the 〈◊〉〈◊〉.

10. More, of what nomber are ⅘ the ••/4. Aunswere: diuide ⅖ by ¾, and thereof commeth 8/15, whiche is the nōber wher¦of 2/•• are the ¾ of the same nomber.

11. More, of what nomber are. 5. ¾. the ••/7. Aunswere: diuide. 15. ¾ by 3/••, and you shall finde. 13. 5/12, whiche is the nō∣ber whereof. 5, ••/4 are the 3/7.

12. More. 9. 〈◊〉〈◊〉 what parte are thei of. 33. Aunswere: diuide. 9. 2/•• by 33. ½. And thereof com∣meth 18/20••: and thus 9. 〈◊〉〈◊〉 are the 58/201 of 33. ½ as ap∣pereth.