When dividing by a fraction the procedure is to invert it and multiply.
So that 4/9 ÷ 1/2 becomes 4/9 x 2/1
And then we multiply the numerators by the numerators (the tops by the tops) and the denominators by the denominator (the bottoms by the bottoms)....
4 x 2 = 8
9 x 1 = 9
Answer 8/9
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5 and 1 over 3.
One whole is nine ninths. Nine ninths minus four ninths equals five ninths.
Seven and one third divided by two ninths = 33/1 or 33
4/9 divided by 1/3 is same as 4/9x3=4/3
The sum of 4/9 and 1/9 is 5/9.