Well, darling, to find the mean of two fractions, you add them together and divide by how many there are. So, in this case, 2/3 + 4/9 equals 10/9. And if you simplify that, you get 1 and 1/9. So, the mean of two thirds and four ninths is 1 and 1/9.
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Ninths.
Two thirds minus two ninths is 4 ninths. Two thirds is 6 ninths. 6 ninths minus 2 ninths is 4 ninths.
To subtract two fractions, they must have a common denominator. In this case, the common denominator is 9. So, convert 2/3 to 6/9. Then, subtract 6/9 - 4/9 to get 2/9 as the result.
2 5/9 + 1 2/3 = 4 2/9 or four and two ninths.
Short answer: 42 Longer answer: Convert everything into 9ths. You get 4x9 (36) plus 2/3 x9 (6)