Question

Is 3/7 and 8/28 proportional or not proportional??

Answer 1

This set of ratios are NOT proportional. If you were to cross multiply, you would get different products for each multiplication equation, symbolizing that these are not Proportional.

Answer 2

Answer:

Yes they are proportional!

The factors of 28 that we can use in these fractions are 4 and 7.  To find if these are proportional, just simplify 8/28.  To do so divide the numerator (top) and the denominator (bottom) both by 4...

8/28 / 4 = 4/7

Now that you have both with the same denominator, you can evaluate if 3/7 and 4/7 are proportional.  In this case they are.

Hope this helps! :)