60/280 x 100% 100/280 x 100% 80/280 x 100% 120/280 x 100% Tolong ya buat pr (∗•ω•∗)

60/280×100/100=3/14
100/280×100/100=5/14
80/280×100/100=4/14=2/7
120/280×100/100=6/14=3/7