First you can turn the fractions into decimals then put them in order from least to greatest 1 / 10 = 0.1 , 0.9 = 0.9 , 3/ 10 = 0.3 in decimal form it would be 0.1 , 0.3 , 0.9 , kinda think of it like money. in standeren form it would be 1/10 , 3/ 10 , and 0.9 (: