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Multiply each numerator into all the denominators except its own for a new numerator, and all the denominators together for a common denominator.
Elements of Algebra: Being an Abridgement of Day's Algebra Adapted to the ... - Σελίδα 58
των Jeremiah Day - 1844 - 252 σελίδες
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## An Introduction to Arithmetic: Containing the Most Useful Rules in Common ...

James Gray - 1854 - 108 σελίδες
...S^j to a simple fraction. Ans. f •\$. PROB. 5. To reduce fractions to a common denominator. RULE. Multiply each numerator into all the denominators, except its own, for a new numerator ; and multiply all the denominators together for a common denominator. NOTE. Fractions may often be reduced...

## Arithmetic for Schools

Barnard Smith - 1854
...the denominator of each fraction. Note 2. If the denominators have no common measure, we must then multiply each numerator into all the denominators, except its own, for a new numerator for each fraction, and all the denominators together for the common denominator. Ex. Reduce \, ?, J,...

## A Practical Treatise on Algebra: Designed for the Use of Students in High ...

Benjamin Greenleaf - 1854 - 360 σελίδες
...fractions to a common denominator. RULE. Multiply each numerator into all the denominators except its man for a new numerator, and all the denominators together for a common denominator. Or, find the least common multiple of all the denominators, and it will be the denominator required....

## An Elementary Arithmetic Designed for Academies and Schools: Also Serving as ...

George Roberts Perkins - 1855 - 347 σελίδες
...improper fractions, and compound fractions to their simplest form. Then multiply each numerator by all the denominators except its own for a new numerator,...the denominators together for a common denominator. Repeat this Rule. EXAMPLES. 1. Reduce i, -£, \$ to equivalent fractions having a common denominator....

## The tutor's assistant

Francis Walkingame - 1855
...Ц, Щ, W, &cREDUCTION OF VULGAR FRACTIONS. 1. To reduce fractions to a common denominator. KULE 1. Multiply each numerator into all the denominators, except its own, for a new numerator; and multiply all the denominators together for a common denominator. Or, 2. Multiply the common denominator...

## The Elements of Algebra

Elias Loomis - 1856 - 268 σελίδες
...fraction a — b' A Ans. a'-b' PROBLEM IV. (82.) To reduce fractions to a common denominator. RULE. Multiply each numerator into all the denominators,...the denominators together for a common denominator. Examples. 3 2 1. Reduce ^ and - to a common denominator. We have seen in Art. 79, that if both numerator...

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

Roswell Chamberlain Smith - 1856 - 311 σελίδες
...the numbers are not all single 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. TsA; 2x6x7=84. Then 1=-^. 5x3x7=105....

## A Practical Treatise on Algebra: Designed for the Use of Students in High ...

Benjamin Greenleaf - 1856 - 360 σελίδες
...VI. 121 1 To reduce fractions to a common denominator. RULE. Multiply each numerator into all tJie denominators except its own for a new numerator, and...the denominators together for a common denominator. Or, find the least common multiple of all the denominators, and it will be the denominator required....

## Arithmetic and Algebra in Their Principles and Application ...

Barnard Smith - 1857
...the denominator of each fraction. Note 2. If the denominators have no common measure, we must then multiply each numerator into all the denominators, except its own, for a new numerator for each fraction, and all the denominators together for the common denominator. Ex. Reduce £, f,...

## A New System of Arithmetic, on an Improved Plan, Embracing the Rules of ...

Charles Guilford Burnham - 1857
...therefore, adopt the common RULE. Multiply all the denominators together for a common denominator, and each numerator into all the denominators except its own for a new numerator. Operation "1st. Denominators, 3x4x5 = 60 com. denominator. Then, 60 — 3x2 = 40) 60-1-4x1 = 15 >•...