The value of m2 is 1/7(m1 + 54)
We need more information. You don't give us enough information....? Provide an image please. Or at least name the polynomials...
Well, since 3/15 can be simplified to 1/5 by dividing the top and the bottom by 3, you would just need to find the decimal of 1/5 which is much more commonly recognized. it's .2 (becasue 1/10 would be .1 and 1/5=2/10 so .1x2=.2)