# 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

Lynch & Davis, 1810 - 204 Seiten

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Seite 74 - 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.
Seite 75 - 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.
Seite 160 - 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?
Seite 128 - Divide the interest last found by the time, and the quotient will be the rate per cent.
Seite 171 - L. per annum, payable yearly, amount to in 4 years at 5 per cent?
Seite 128 - Is to one hundred pounds or dollars, So is the interest of the principal, for the given time, To the interest of 100...
Seite 159 - 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.