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" Multiply the whole number by the numerator of the fraction, and divide the product by the denominator ; or divide the whole number by the denominator of the fraction, and multiply the quotient by the numerator. "
Mathematical Manual for the Use of Colleges and Academies - Page 33
by L. I. M. Chevigné - 1807
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A Plain and Familiar Method for Attaining the Knowledge and Practice of ...

Edmund Wingate - Arithmetic - 1751 - 401 pages
...'|° = 30. 299. Hence if it be required to multiply an integer by a Fraction, multiply the integer by the Numerator of the Fraction and divide the product by the Denominator. For Example, the product of 48 by \ is = 6X5 = 30. That the methods above directed are true, may be...
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The Accomplished Tutor; Or, Complete System of Liberal Education ..., Volume 2

Thomas Hodson - Arithmetic - 1806 - 458 pages
...number in the upper line. Then multiply the laft number, thus found by the abfolute number (6)t in the numerator of the fraction, and divide the product by the denominator; then the remainder will be the true value of x required, provided the number of terms in the upper...
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Scientific Dialogues: Intended for the Instruction and Entertainment of ...

Jeremiah Joyce - 1809
...inches, and these are to be divided by the focal distance of the eye-glass, or by TV; but to divide a whole' number by a fraction, we must multiply that number by the denominator, or lower figure in the fraction : therefore the power gained by the distance between the...
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Carleton's Compendium of Practical Arithmetic: Applied to the Federal and ...

Osgood Carleton - Arithmetic - 1810 - 251 pages
...то SIMPLE MULTIPLICATION. CASE I. When the multiplier is a fraction, as •§, -J, Sec. multiply by the numerator of the fraction, and divide the product by the denominator ; the quotient will be the true product : If the numerator be 1, divide by the denominator only, as...
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Easy Introduction to Mathematics, Volume 1

Charles Butler - Mathematics - 1814
...a fraction, the numerator of which is greater than unity. RULE. Multiply the logarithm of the given number by the numerator of the fraction, and divide the product by the denominator. Or, Divide the logarithm by the denominator, and multiply the quotient by the numerator. Or, Reduce...
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Of optics, magnetism, electricity, & galvanism

Jeremiah Joyce - Science - 1815
...inches, and these are to be divided by the focal distance of the eye-glass, or by 7V ; but to divide a whole number by a fraction, we must multiply that number by the denominator, or lower figure in the fraction : therefore the power gained by the distance between the...
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A New and Concise System of Arithmetick: Containing Vulgar, Decimal, and ...

Beriah Stevens - Arithmetic - 1822 - 423 pages
...|X5|3 = i||°=H3||s.=£5 13s. 1(M. or, without reducing, you may DTiultiply the given multiplicand by the numerator of the fraction, and divide the product by the denominator. EXERCISES. 1. Multiply 4 by TiT. Product 44. 2. Multiply 7| by | . Product 6|| . 3. Multiply 8| by...
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A Key to the Introductory Arithmetic: Prepared for the Pupils of the ...

John Epy Lovell - 1828
...multiplicand is a whole number, and the multiplier a fraction. M. How do you work? P. Multiply the ?0A0/c number by the numerator of the fraction and divide the product by the denominator. LESSON CLIX. .'/IK. jVo. -fe. cts. 2 1 1O - - yds. 20 18 л ... 45 $3 12 ... - $10 16 - s 1б iv б...
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The Federal Calculator: Or, A Concise System of Practical Arithmetic

William Slocomb - 1828 - 137 pages
...of}. Ans. ^ G. Multiply 5| by -J-. Ans. |> Note. To multiply a whole number by a fraction, multiply by the numerator of the fraction, and divide the product by the denominator. DIVISION OF VULGAR FRACTIONS. v Prepare the fractions as before directed; then invert the divisor and...
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A Treatise on Arithmetic: Designed Particularly as a Text for Classes in ...

Frederick Augustus Porter Barnard - Arithmetic - 1830 - 288 pages
...by 3, and then divide by 4, &c. Hence, to multiply a number by a fraction, MULTIPLY THE к v»iB»R BY THE NUMERATOR OF THE FRACTION, AND DIVIDE THE PRODUCT BY THE DENOMINATOR. The above example, then, is performed as Ы\<,\\ ¡, : 686X31 = 18,166, and 686Xt=293. Then, I8,166-j-20;j...
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