Write these numbers in order of size. start with the smallest number: 1/2, 2/3, 2/5, 3/4

First make the fractions into decimals so it's easier to compare them.

1/2 ⇒ 0.5
2/3 ⇒ 0.66
2/5 ⇒ 0.4
3/4 ⇒ 0.75

Now it's easy to order the numbers from least to greatest.

First order the decimals.

0.4, 0.5, 0.66, 0.75

Now order them with their corresponding fractions.

2/5, 1/2, 2/3, 3/4 is your answer.

The answer of the above is