The fraction of the total for each cube can be represented by:
the number of cubes of a specific color/total number of cubes
There are 70 total cubes, so each color with respect to the total number of cubes can be written as a ratio:
The ratio of red cubes, for instance, is 15/70 = 3/14 (when you take out the common factor of 5 in numerator and denominator)
The ratio of green cubes is 9/70.
Do the same for the remaining colors.
To order them from least to greatest, it will probably be best to leave the denominator as 70 and not attempt to reduce the fraction. That way, all you have to do is look at the numerator and arrange the fractions based on the numerator, unless your teacher has instructed you to reduce each fraction to simplest terms.
