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

Benjamin Greenleaf - 1849 - 324 σελίδες
...may cancel 4X0X/^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...

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

Nathan Daboll, David Austin Daboll - 1849 - 249 σελίδες
...equal parts, it will take 12 such parts to make a whole one ; therefore ^ of -J- is iJj, 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....

## Higher Arithmetic: Designed for the Use of High Schools, Academies, and ...

George Roberts Perkins - 1850 - 342 σελίδες
...fractions as for reducing compound fractions. Hence, to multiply together fractions, we have this RULE. 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 both numerators and denominators....

## ... An Elementary Arithmetic ... Serving as an Introduction to the Higher ...

George Roberts Perkins - 1850 - 347 σελίδες
...same rule as for reducing compound fractions. Therefore, to multiply fractions, we have this RULE. 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 both numerators and denominators....

## The National Arithmetic on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - 1850 - 360 σελίδες
...saying, RULE. — Change mixed numbers and whole numbers, if there be any, to improper fractions ; then multiply all the numerators together for a new numerator,...all the denominators together for a new denominator; the fraction should then be reduced to its lowest terms. If there be numbers in the numerator similar...

## ARITHMETIC ON THE PRODUCTIVE SYSTEM

ROSWELL C. SMITH - 1850
...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. 2x6x7= 84. Then f =3 5x3 x 7= 105. Then t=| 4x6x3= 72. 6. Reduce f , f , and 4 to a com. denominator....

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

George Roberts Perkins - 1851 - 347 σελίδες
...the word OP, 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,...

## Engineers' and Mechanics' Pocket-book ...

Charles Haynes Haswell - 1851 - 286 σελίδες
...FRACTIONS. !'i. I,?:,, — Prepare the fractions as previously required ; multiply all the numeraire together for a new numerator, and all the denominators together for a new ^nominator. .— What is the product of J and J ? 3Vs . 0 . 1 a_, tX? — 5J— I •** .— What is...

## Introduction to the National Arithmetic ...

Benjamin Greenleaf - 1851
...may cancel 4XpX/5TX0X 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...

## ENGINEERS AND MECHANICS POCKET BOOK

CHAS. H. HASWELL - 1853
...from £. MULTIPLICATION OF VULGAR FRACTIONS. RULE. — Prepare the fractions as previously required; multiply all the numerators together for a new numerator, and all the denominators together for a now denominator. EXAMPLE.— What is the product of J and J ? iX» =&=*.*». EXAMPLE .—What is the...