4/9 + 1/6 = ?
In order to add fractions, the denominators must be the same. In this case, 6 and 9 can both go into 18. So the numerators and denominators must be multiplied times the number that can change each denominator into 18.
4/9(2/2) + 1/6(3/3) = 8/18 + 3/18 = 11/18
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The sum of 4/9 and 1/9 is 5/9.
One whole is nine ninths. Nine ninths minus four ninths equals five ninths.
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Expressed as a proper fraction in its simplest form, 1/3 + 4/9 = 7/9 or seven ninths.