Multiply both the components of the ratio by any non-zero integer or divide both by any common factor. You will have an equivalent ratio.
So for example, 210 : 180 , or 2100 : 1800 or 42 : 36.
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It simplifies as a ratio of 1:4
three equivalent ratios for 6 to 2 are 12 to 4 and 18 to 6 and also 24 to 8. basically if you multiply both numbers by the same thing you will get an equivalent ratio.
Expressed as a ratio in its simplest form, by dividing the antecedent and consequent by 18, 18:36 is equal to 1:2.
They are: 5 to 6, 15 to 18 and 20 to 24
Oh, what a lovely question! To find out if two ratios are proportional, we can cross multiply and see if the results are equal. So, for 8 to 9 and 18 to 16, when we cross multiply (8 x 16 and 9 x 18), we see that they are not equal. That means these ratios are not proportional, but it's all part of the happy little journey of learning!