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" Multiply the numerators together for a new numerator, and the denominators together for a new denominator. "
The Mechanic's Calculator, Or Workman's Memorial Book ... - Pàgina iv
per William Grier - 1832 - 300 pàgines
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Introduction to the National Arithmetic on the Inductive System: Combining ...

Benjamin Greenleaf - 1871 - 350 pàgines
...multiply J by £ is to take £ of the multiplicand, J- (Art. 154). Now, to obtain J of £, we simply multiply the numerators together for a new numerator, and the denominators together ibr a new denominator (Art. 138). Therefore, Multiplying one fraction by another is the same as reducing...
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The Art of Teaching School: A Manual of Suggestions for the Use of Teachers ...

Josiah Rhinehart Sypher - 1872 - 340 pàgines
...— or ~. This rule is therefore deduced, that a fraction is multiplied by a fraction by multiplying the numerators together for a new numerator and the denominators together for a new denominator. The product should always be reduced to its lowest terms. Division of Fractions. — The teacher should...
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Euclid's Elements of Geometry

Euclid - 1872 - 284 pàgines
...the difference between dx and d* b — cb + i 2rfc* Ans...«• MULTIPLICATION OF FRACTIONS. RULE. Multiply the numerators together for a new numerator,...and the denominators together for a new denominator ; but if the numerator of one, and denominator of the other, can be divided by a quantity common to...
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The Art of Teaching School.

Josiah Rhinehart Sypher - 1872 - 336 pàgines
...or -J-. This rule is therefore deduced, that a fraction is multiplied by a fraction by multiplying the numerators together for a new numerator and the denominators together for a new denominator. The product should always be reduced to its lowest terms. Division of Fractions.— The teacher should...
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Crittenden Commercial Arithmetic ...

John Groesbeck - 1872 - 374 pàgines
...101376 " " 8. 12672 " " 1. 237600— product by 18}. 24. To multiply a fraction by a fraction. RULE. — Multiply the numerators together for a new numerator,...and the denominators together for a new denominator. 1. Multiply | by f 2X4 = 5 X 7=35 Ans. 2. Multiply i by TfiT. 3. 4. 1 8 « ~3~ 4' if 25. To divide...
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Technical Arithmetic and Mensuration

Charles W. Merrifield - 1872 - 332 pàgines
...The reasoning is evidently general, and hence we get the rule that to multiply two fractions we must multiply the numerators together for a new numerator,...and the denominators together for a new denominator. Thus £ x|=ff; £ xf=**s— S, since we may divide out the 6. A fraction of a fraction implies the...
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The Principles of Arithmetic ...

Joseph Ray - 1856 - 400 pàgines
...(Art. 108), these 3 cases may all be performed by this N GENERAL RULE FOR MULTIPLYING FRACTIONS. • Multiply the numerators together for a new numerator,...and the denominators together for a new denominator. Multiply I by 1 5 X 3 = T'5 Ans. DEMONSTRATION. — We can attach no other idea to the product of 4...
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An Elementary Algebra for Schools and Academies

Joseph W. Wilson - 1873 - 268 pàgines
...xy * *» + * SECTION XXXVII. Multiplication of Fractions. THE process is the same as in arithmetic. Multiply the numerators together for a new numerator,...and the denominators together for a new denominator, cancelling common factors of any numerator and any denominator. By such cancellation, the result will...
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The Art of Computation, Designed to Teach Practical Methods of Reckoning ...

David White Goodrich - 1873 - 220 pàgines
...of fractions are much simpler, requiring no reduction to a common denominator. For Multiplication, multiply the numerators together for a new numerator,...and the denominators together for a new denominator. For Division, invert the divisor and proceed as in multiplication. Let us perform all these operations...
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Book-keeping Rationalized: Adapted to All Kinds of Business, -personal and ...

George Nixon Comer - 1873 - 182 pàgines
...and f = ^f, and subtracting 9 frim 10, we have ^. Fractions arc multiplicd together by multiplying the numerators together for a new numerator, and the denominators together for a new denominator. Thus, to multiply^ by J, we have £xf -M=TTTby resolving the 8 into 2X4, and cancelling the 2's. In...
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