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The equivalent ratio to 2:9 can be found by multiplying or dividing both terms by the same non-zero number. In this case, if we multiply both terms by 5, we get the equivalent ratio of 10:45. This is because 2 * 5 = 10 and 9 * 5 = 45. Therefore, the equivalent ratio to 2:9 is 10:45.
Multiply both number by any non-zero number and you will get an equivalent ratio.
A ratio is equivalent to 12 to 10 when both numbers can be divided by the same factor to simplify the ratio. In this case, both 12 and 10 can be divided by 2 to get 6 and 5 respectively. Therefore, the equivalent ratio to 12 to 10 is 6 to 5. This means that for every 6 of one quantity, there are 5 of the other quantity.
If you mean 156/390 then it is 2/5 in its lowest terms