BOOK II.

up of £13 × 7, or £91, and £8. 15. 9¼. The quotient of the first, 13 being the divisor, is £7: it remains to find that of the second. Since £8 is 160 s. , £8. 15. 9¼ is 175 s. 9¼ d. , and 175 divided by 13 gives the quotient 13, and the remainder 6; that is, 175 s. 9¼ d. is made up of 169 s. and 6 s. 9¼ d. , the quotient of the first of which is 13 s. , and it remains to find that of the second. Since 6 s. is 72 d. , 6 s. 9¼ d. is 81¼ d. , and 81 divided by 13 gives the quotient 6 and remainder 3; that is, 81¼ d. is 78 d. and 3¼ d. , of the first of which the quotient is 6 d. Again, since 3 d. is ¹²/₄, or 12 farthings, 3¼ d. is 13 farthings, the quotient of which is 1 farthing, or ¼, without remainder. We have then divided £99. 15. 9¼ into four parts, each of which is divisible by 13, viz. £91, 169 s. , 78 d. ,