text: claire has 4 pens 6 of them are red. what percent of her pens are red? im not sure how to show my work as a pr oportion.... sorry i had a brain fart, haha. wow, 150% of her pens are red.  you should note that claire has more red pens than total pens, which makes no sense at all.  if you meant she has 4 red pens out of 6 pens total, then here you go:  (4 red pens)/(6 pens total) = .6666666 .6666666 x 100% = 66.666% (two thirds of her pens are red)  if you meant she has 6 red pens and 4 non-red pens, then this is what you want:  (6 red pens)/(10 pens total) = .6 .6 x 100% = 60% (three fifths of her pens are red)