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Example 1.110 from Elementary Algebra, 1.8 The Real Numbers
Write as the ratio of two integers: ⓐ ⓑ 7.31.
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
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Write it as a fraction with denominator 1. |
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Write it as a mixed number. Remember, 7 is the whole number and the decimal part, 0.31, indicates hundredths. Convert to an improper fraction. |
So we see that and 7.31 are both rational numbers, since they can be written as the ratio of two integers.
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Write as the ratio of two integers: ⓐ ⓑ 3.57.
How did it go?