A new and plain system of arithmetic: containing the several rules of that useful science, concisely defined and greatly simplified, the whole, particularly adapted to the easy and regular instruction of youth, and to the trade and commerce of the United States

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Printed by Lynch & Davis, 1810 - Mathematics - 204 pages
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Page 72 - RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator: then reduce the new fraction to its lowest terms.
Page 73 - To reJuce a fraction of one denomination to the fraction of another, but greater, 'retaining the same value. RULE. Reduce the given fraction to a compound one by comparing it with all the denominations between it and that denomination you would reduce it to ; then reduce that compound fraction to a simple one, by Case V.
Page 158 - A person bought a chaise, horse, and harness, • for 60 ; the horse came to twice the price of the harness, and the chaise to twice the price of the horse and harness ; what did he give for each?
Page 126 - Divide the interest last found by the time, and the quotient will be the rate per cent.
Page 193 - L. per annum, payable yearly, amount to in 4 years at 5 per cent?
Page 126 - Is to one hundred pounds or dollars, So is the interest of the principal, for the given time, To the interest of 100...
Page 157 - POSITION. POSITION is a rule which, by false or supposed numbers, taken at pleasure, discovers the true ones required. — It is divided into two parts, Single or Double. SINGLE POSITION RULE.-— 1.

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