put it from least to greatest. 48.6, 68.4, 46.8

To put the numbers in order from least to greatest, follow these steps:

1. Compare the first two numbers, 48.6 and 68.4.
2. Since 48.6 is smaller than 68.4, we can write it as the first number.
3. The remaining number, 46.8, needs to be compared to the numbers already sorted.
4. Comparing 46.8 with 48.6, we see that 46.8 is smaller, so it should be placed before 48.6.
5. Lastly, we compare 46.8 with 68.4. Since 46.8 is still smaller, it should be placed before 68.4.
6. Putting it all together, we get the numbers in order from least to greatest: 46.8, 48.6, 68.4.

In summary, the numbers arranged from least to greatest are 46.8, 48.6, 68.4.