To convert the decimal 18.66666667 to a fraction in lowest terms, we first identify that the decimal part (.66666667) can be represented as 2/3. Therefore, 18.66666667 can be written as 18 2/3 in mixed number form. To convert this mixed number to an improper fraction, we multiply the whole number (18) by the denominator of the fraction (3) and add the numerator (2) to get 56. The improper fraction is 56/3, which simplifies to 18 2/3 or 56/3 in lowest terms.
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3.2 as a fraction in lowest terms is16/5
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The lowest terms of 0.875 as a fraction is 7/8