Try multiplying the ratio (7:12) by 1 in several different forms. (Remember, 1=1:1=2:2 etc...)
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There are four equivalent ratios of the numbers 8 to 32. The four equivalent ratios are 4/16, 8/12, 7/1 and 3/5.
Well, honey, a proportion is formed when two ratios are equal. So, to find the missing number that forms a proportion with 12 and 7, you simply divide 12 by 7 to get approximately 1.714. There you go, math made sassy!
0.3:0.7 3:7 6:14 15:35
The ratio you're given is in it's simplest form, meaning it can't be reduced any farther. To get equivalent ratios, multiply the numerator and the denominator (top and bottom numbers respectively) by any number you want. Just make sure you multiply both the top AND the bottom by the SAME number. Just to make it easy, three equivalent fractions for 11/12 are 22/24 , 33/36 , and 44/48 .
No. 4/7 and 16/28 and 28/49 are equivalent ratios. The 4 and the 7 must be multiplied by the same number in order to maintain the ratio.