What must be subtracted from each term of the ratio 4 : 5, so that it may be equal to 4 : 9?

1
\(\frac{{16}}{7}\)
2
\(\frac{{13}}{5}\)
3
\(\frac{{13}}{7}\)
4
\(\frac{{16}}{5}\)
5
\(\frac{{15}}{7}\)

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