Divide 30cm into the ratio 2:4
first you add the two parts of the ratio.2 + 4 = 6then you divide30 / 6 = 5then you multiply into the original ratio(2 x 5) : (4 x 5)10 : 20
Hey there, 30:15, 2:4 simplified is 1:2, 152=30 and 130=30,