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Multiply all the numerators together for a new numerator, and all the denominators together for a new denominator.
A treatise on mercantile and practical arithmetic - Σελίδα 113
των John Penrose (teacher of arithmetic.) - 1824 - 300 σελίδες
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## Arithmetic for Schools

Barnard Smith - 1854
...much does the sum of the fractions 1^ and ^ exceed their difference ? • MULTIPLICATION. 77. RULE. Multiply all the numerators together for a new numerator,...all the denominators together for a new denominator. о ej Ex. Multiply s by - . t cl Proceeding by the Rule given above, 3x5 15 7x8~~56' Reason for the...

## Introduction to arithmetic

Chambers W. and R., ltd - 1854
...fand 2. 4 » 3- * » U 4. 5. 6. 49 'Щ Ans. 5'т " П MULTIPLICATION OF VULGAR FRACTIONS. RULE. — Multiply all the numerators together for a new numerator,...all the denominators together for a new denominator : the resulting fraction may then be reduced to its lowest terms. NOTE. — Before multiplying, convert...

## The Practical Calculator; a Treatise on Arithmetic ...

C. W. Thornhill - 1854
...of a month from -f^ of a year. Ans. 5 mon. 3 wks. 0 dys. 11 hrs. 52^ min. MULTIPLICATION. RTJLE. — Multiply all the numerators together for a new numerator, and all the denominators for a new denominator, cancelling both numerators and denominators when practicable, according to Case...

## Indroduction to the National Arithmetic ...

Benjamin Greenleaf - 1854
...cancel , *XpX/«X0X 11 these common factors, according 0 to the rules of cancellation. RULE. — 1. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator, and then reduce the fraction to its lowest terms. 2. If there are factors in...

## A Treatise on Algebra

Elias Loomis - 1855 - 316 σελίδες
...„ subtract — - — . Ans. PROBLEM VII. (89.) To multiply fractional quantities together. RULE. Multiply all the numerators together for a new numerator,...all the denominators together for a new denominator ac Let it be required to multiply T by •> a First, let us multiply r by c. According to Remark first...

## Common School Algebra

Thomas Sherwin - 1855 - 238 σελίδες
.... — = - . b п у bпу Hence we have the following RULE FOR MULTIPLYING FRACTIONS BY FRACTIONS. Multiply all the numerators together for a new numerator,...all the denominators together for a new denominator. Remark. As the resulting fractions should be simplified, it is best to represent the operation, then...

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

George Roberts Perkins - 1855 - 347 σελίδες
...the word or, which connects the fractional parts, as equivalent to the sign of multiplication. Then multiply all the numerators together for a new numerator,...all the denominators together for a new denominator ; always observing to reject or cancel such factors as are common to the numerators and denominators,...

## The Elements of Algebra

Elias Loomis - 1856 - 268 σελίδες
...33ab'm+6b'cm-2ab Ans. FTT • 36m PROBLEM VII. (85.) To multiply fractional quantities together. RULE. Multiply all the numerators together for a new numerator,...all the denominators together for a new denominator. Before demonstrating this rule, we must establish. the two following principles : 1. In order to multiply...

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

Roswell Chamberlain Smith - 1856 - 311 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. TsA; 2x6x7=84. Then 1=-^. 5x3x7=105. Then f =!ff 4x6x3=...

## First Lessons in Algebra: In which the Elements of the Science are ...

Samuel Alsop - 1856 - 135 σελίδες
...- 5663 MULTIPLICATION OF FRACTIONS. RULE. § 33. Reduce mixed numbers to improper fractions ; then multiply all the numerators together for a new numerator, and all the denominators for a new denominator. If any factor is found, both in a numerator and denominator, it may be cancelled...