Im Not That sure But I Belive That If Denominators Are The Same Keep It And Just Do The Math In The Numerator's . ( For Adding ) But Multiplying You Do Both and If The Numerator Is The Bigger Than The Denominator Your Going To Have To Do Extra Math Like A Common Denominator ( I Belive ) .
W + (4.5 + 4w)= 60 5w + 4.5 = 60 5w = 55.5 w = 11.1 l = 11.1 + 4.5 + 4(11.1) solve for l to find the length sorry i half did this. i’m really tired :D hope i helped in something, even tho i could be wrong F