Does 2:4/5,3/4:3/10 form a proportion
2:4/5= 2/(4/5)= 2(5/4)= 5/2= 5:23/4:3/10= (3/4)/(3/10)= (3/4)(10/3)= 5/2= 5:2Because 5:2= 5:2, 2:4/5 and 3/4:3/10 form a proportion~