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Then multiply all the numerators together for a new numerator, and all the denominators together for a new denominator...
Higher Arithmetic: Designed for the Use of High Schools, Academies, and Colleges - Σελίδα 35
των George Roberts Perkins - 1841 - 252 σελίδες
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An Elementary Arithmetic Serving as an Introduction to the Higher Arithmetic

George Roberts Perkins - 1869 - 347 σελίδες
...fractional parts, as equivalent to the sign of multiplication. Then multiply all the numerators together for a new numerator, and all the denominators together for a new denominator ; altcays observing to reject or cancel such factors as are common to the numerators and denominators,...

The Art of Computation: Designed to Teach Practical Methods of Reckoning ...

David White Goodrich - 1873 - 206 σελίδες
...fractions to a common denominatoe, multiply each numerator by all the denominators, except its own, for a new numerator, and all the denominators together for a new denominator. Thus, {-, |, f, |, \$, give us respectively 1x3x4x5x6 ., 2x2x4x5x6 __ — — jjJLJf. . __ > 2x3x4x5xG~~i::"i...

The High School Arithmetic: Containig All the Matter Usually Presented in a ...

Philotus Dean - 1874 - 454 σελίδες
...denominator; 5 7 0X7 3 5 and three-fifths of * = 3 times Rule. — Multiply all the numerators together for a new numerator, and all the denominators together for a new denominator. NOTE 1. — If there are whole or mixed numbers in the compound expression, first reduce them to the...