7.4 − (−3.7)
7.4 - (-3.7) = 7.4 + 3.7 = 11.1
To subtract a negative number, you can simply change the subtraction operation to addition. The equation 7.4 - (-3.7) can be rewritten as 7.4 + 3.7.
Adding 7.4 and 3.7 together, we get:
7.4 + 3.7 = 11.1
Therefore, 7.4 - (-3.7) is equal to 11.1.