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What number must be added to the denominator of 9 over 16 so that when the numerator is doubled the result is 1?
Wiki User
∙ 6y ago
Doubling the numerator gives 2 × 9 = 18
To have a result of 1, the numerator and denominator must be the same.
Thus the denominator needs to be 18.
18 - 16 = 2
→ 2 must be added to the denominator.
Wiki User
∙ 6y ago
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If the denominator of 3 of 4 is increased by a number and the numerator is doubled the result is 1 find the number?
2
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First you need to make the mixed number into a improper fraction. To do this, take the denominator times the number in front. Then add the result to the numerator. Then the improper fraction is that result over the denominator. _______________________________________________________________ If X is the leading number, D is the denominator, N is the numerator: X and N/D=(X*D+N)/D _______________________________________________________________ Then take this new fraction and flip the numerator and the denominator: D/(X*D+N) _______________________________________________________________ So to get the reciprocal of a mixed number in one step, the reciprocal's: numerator is equal to the denominator of the mixed number; denominator is equal to the leading number multiplied by the denominator added to the numerator.
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