Leonhard Euler · 1770 (1828 English ed.) · Internet Archive
Elements of Algebra
All 627 leaves · leaf 213
Transcription
176 ELEMENTS SECT. III.
curs, it is easy to find its value. Let there be given, for example, $0.296296$: its value will be $\frac{296}{999} = \frac{8}{27}$, by dividing both its terms by $37$.
This fraction ought to give again the decimal fraction proposed; and we may easily be convinced that this is the real result, by dividing $8$ by $9$, and then that quotient by $3$, because $27 = 3 \times 9$: thus, we have
9) $8.000000$
3) $0.888888$
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$0.296296, \ldots$
which is the decimal fraction that was proposed.
539. Suppose it were required to reduce the fraction $\frac{1}{1 \times 2 \times 3 \times 4 \times 5 \times 6 \times 7 \times 8 \times 9 \times 10}$ to a decimal. The operation would be as follows:
2) $1.00000000000000$
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3) $0.50000000000000$
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4) $0.16666666666666$
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5) $0.04166666666666$
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6) $0.00833333333333$
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7) $0.00138888888888$
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8) $0.00019841269841$
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9) $0.00002480158730$
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10) $0.00000275573192$
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$0.00000027557319$
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