The answer is 10:18 because 5x2=10 and 9x2=18
There is infinitely many ratios which are equivalent to 5:9. As we know always we can write divide as fraction, so 9 5 . We can multiply nominator and denominator by the any number (but the same) and get another numbers but ratio will be the same, so equivalent. For example 10:18, 15:27
To find two equivalent ratios to 5:9, we can multiply both the numerator and denominator by the same number. For example, using 2 gives us 10:18 and using 3 gives us 15:27. Therefore, two ratios equivalent to 5:9 are 10:18 and 15:27.
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