Cocker's Arithmetick: being a plain and familiar method suitable to the meanest capacity, for the full understanding of that incomparable art, as it is now taught by the ablest school-masters in city and country ... / By Edward Cocker, late practicioner [!] in the arts of writing, artihmetick, and engraving. Being that so long since promised to the world. Perused and published by John Hawkins, writing-master near St. George's church in Southwark, by the author's correct copy, and recommended to the world by many eminent mathematicians and writing-masters in and near London.

Edward Cocker

Date:: 1697

Credit: Cocker's Arithmetick: being a plain and familiar method suitable to the meanest capacity, for the full understanding of that incomparable art, as it is now taught by the ablest school-masters in city and country ... / By Edward Cocker, late practicioner [!] in the arts of writing, artihmetick, and engraving. Being that so long since promised to the world. Perused and published by John Hawkins, writing-master near St. George's church in Southwark, by the author's correct copy, and recommended to the world by many eminent mathematicians and writing-masters in and near London. Source: Wellcome Collection.

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$\ ie ms T” ny phay 20 Vulear Fr ati ious. } Firft add the fraé ti ons 3 -and §, the ‘6 ab: Kd this integer I, to 13 and : ind put atrer ic the fraQior 1 22 l it itis 283, i 34) 5 iu 4- If any of ai ke | Piai Fra¢tion, ir muft firft raion | by the 6th Ru! ¥ be added is a Com- € reduced to a fimple Wie laper ro, and then add | d to the reft accordir tO the 24 Rule of this Chante dkample, Q Ke ft. é, What ig the Sum of 3, £ | Reduce 2 Of 4 of 3 . 2 +» and 7 of 3 of $? into a fim ple fra&ion, and it is iE, which red; iced vith the other two, and added pe. 1s se, 7 tt Queit. 7. Whar he Su fF is 3. be ? i as j vane the oumor +5 and 3 of 4of £ 15 . If the Traction to be added are not of one de- “apie they muft be fo reduced, and then pro- ed as before. WQwft. 8. What is the Sum of 34. and 5s : jo: the gt fractions h ere, One is of 2 ‘eal and @e Other che fraction of a hil ling; .and before you an add the em together, you mui reduce 2.5, to. the fection of a Pp ound 2s the other is (bv the rh - le of os a 19) ac od i It makes a hg then 3 l, and apd. will be ound tobe 38° /, or 38/. by th igre OF Chapter 10, and in its loweft terms rq 4, by 2 ; ry fAfh R D Rule ise Chapter 10 ~/ @ S° f ft would have been the fame. if (by the latrer Path the 8th Rule of Chap ney 19) you had. reduced 3 /, fe tion of a fhi] ling, wh me) i you would have Hd to have been °°, which added to. 5s, by the 17th B be Jaft Chap. the Sum is res a4 rR F i] . 4 [ th Rule of the J ay Bich is equal cothe Sum found as before. Rite Gs A he eth Rule or ¢ haprer 19) the value of Se i. be found tobe re s. 10d, and fo will rg 4,32 be$

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