Smallest to biggest 0.43,3/7,43.8%,7/16

First, we need to convert all the givens to decimal numbers. This will ease the arrangement process.

0.43 is already given as a decimal

3/7 is equal to 0.428

43.8% is equal to 0.438

7/16 is equal to 0.4375

Now, it has become easy to arrange the givens from smallest to biggest as follows:

0.428, 0.43, 0.4375, 0.438

Changing the decimals back to the given form, we will find that the arrangement from the smallest to the biggest is as follows:

3/7, 0.43, 7/16, 43.8%