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Multiply all the numerators together for a new numerator, and all the denominators together for a new denominator.
Practical and Mental Arithmetic: Designed Principally to Accompany Daboll's ... - Σελίδα 90
των Roswell Chamberlain Smith - 1826 - 107 σελίδες
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## Higher Arithmetic: Designed for the Use of High Schools, Academies, and Colleges

George Roberts Perkins - 1841 - 252 σελίδες
...Con*ider the word OF, which connects thefractiondl parts, as equivalent to the sign of multiplication. Then multiply all the numerators together for a new...all the denominators together for a new denominator. Always observing to reject, or cancel, such factors as are common to the numerators and denominators...

## Ruger's Arithmetick, with Questions and Answers: A New System of Arithmetick ...

William Ruger - 1841 - 263 σελίδες
...the parts of an integer. RULE.— Reduee mixed numbers, if there be any, to equivalent fractions ; then multiply all the numerators together for a new...all the denominators together for a new denominator, which will give the product required. EXAMPLES. 1. Multiply i by -J. iX^=|, the Answer. DEM. — It...

## United States Calculator: Or, Arithmetic Simplified

John M'Nevin - 1841 - 280 σελίδες
...whence the following Rule is deduced: multiply each numerator by all the denominators, except its own, for a new numerator, and all the denominators together for a new denominator. Exampk.—Add 62^ « 37| « 19f By Reduction £ is equal to 50 cents. J " 25 « Ans. l|f = \$1.81t Add...

## The United States Calculator: Or, Arithmetic Simplified, in Dollars and ...

John M'Nevin - 1841 - 280 σελίδες
...whence the following Rule is deduced: multiply each numerator by all the denominators, except its own, for a new numerator, and all the denominators together for a new denominator. Example.— Add 62£ " 37| Add 4, i, f, and TV together, (say dollars.) By Reduction \$ is equal to...

## Introduction to the National Arithmetic: On the Inductive System : Combining ...

Benjamin Greenleaf - 1842 - 174 σελίδες
...induce the following Change mixed numbers and whole numbers, if there be any, to improper fractions ; then multiply all the numerators together for a new...all the denominators together for a new denominator ; the fraction should tlien be reduced to its lowest terms. 6. What is § of | of f ? OPKRATIOK. 7....

## The principles of arithmetic. [Followed by] The principles of algebra

Wales Christopher Hotson - 1842
...transformation will be effected if each numerator be multiplied by all the denominators, except its own, for a new numerator, and all the denominators together for a new denominator. Ex. To transform - - , — ; — , and , , , so as to a-1 a+1 a2+l have a common denominator. Multiplying...

## Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - 1842 - 306 σελίδες
...fractions reduce them to fuch first, then multiply each numerator by all the denominators except its own, for a new numerator ; and all the denominators together for a new denominator. 6. Reduce f , f , and 4 to a com. denominator. 105. 2x6x7= 84. 5x3x7 = 105. Then£=iff. 4x6x3= 72....

## Conversations on arithmetic

mrs. Henry Ayres - 1843 - 446 σελίδες
...(that is whole numbers), mixed numbers, or complex fractions, and reduce them by the former rules ; then multiply all the numerators together for a new numerator, and all the denominators for a new denominator, and reduce this fraction to its lowest terms. Examples. 37. Reduce f of f of...

## Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - 1843 - 306 σελίδες
...fractions reduce them to such first, then multiply each numerator by all the denominators except its own, for a new numerator; and all the denominators together for a new denominator. 6. Reduce f, f, and 4 to a com. denominator. A 84 . 105 . •"•. TTff) TUB" . 105 . 73 " 2x6x7= 84....

## Daboll's Complete Schoolmaster's Assistant Being a Plain Comprehensive ...

Nathan Daboll - 1843 - 240 σελίδες
...equal parts, it will take 12 such parts to make a whole one ; therefore ^ of j is -jlj, Answer. RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator, and they will form the fraction required, which reduce to its lowest terms....