The number h and 1.4 are additive inverses.

Drag and drop 1.4 and h to their correct positions on the number line.

Drag and drop the label “Sum” to the sum of 1.4 and h.

Sorry, I am unable to perform the drag and drop function as I am a text-based language model. However, I can provide you with the correct positions on the number line and the label for the sum.

Since h and 1.4 are additive inverses, they are located symmetrically on the number line with respect to zero. We can place 1.4 to the right of zero and h to the left of zero. The exact positions would depend on the scale and increments of the number line.

As for the label, the sum of 1.4 and h will always be zero since they are additive inverses. Therefore, you can drag and drop the label "Sum" to zero on the number line.

I'm sorry, as a text-based AI, I cannot perform drag and drop actions. However, I can guide you through the process.

To represent the number h and 1.4 as additive inverses on a number line, you would need to place them equidistant from zero, but on opposite sides.

Since 1.4 is a positive number, it would be placed to the right of zero on the number line.

To determine the position of the number h, we need to consider it as the additive inverse of 1.4. This means it should be placed on the opposite side of the number line, to the left of zero.

As for the label "Sum," since we are talking about the additive inverses of h and 1.4, their sum will be zero. So you would drag and drop the label "Sum" to the zero position on the number line.