What is 7 and 4-tenths minus 2 and 6-tenths?

1 answer

To subtract 2 and 6-tenths from 7 and 4-tenths, we subtract the whole numbers separately and then subtract the tenths separately.

Subtracting the whole numbers:
7 - 2 = 5

Subtracting the tenths:
4 - 6 = -2

Now we combine the whole number and the tenths:
5 and -2-tenths

However, since we cannot have a negative value for the tenths, we need to borrow 1 from the whole number to make the tenths positive.

So, we borrow 1 from the whole number 5, which becomes 4, and add it to the tenths -2.

4 - 1 = 3
-2 + 10 = 8

The final answer is 4 and 8-tenths.
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