The addition of the decimal number that's given will be -14.8
It should be noted that decimal numbers are the numbers that have a whole number and the fractional part is separated by a decimal.
In this case, the addition will be:
= -2.6 + (-12.2)
= -2.6 - 12.2
= -14.8
In conclusion, the correct option is -14.8.
Learn more about decimals on:
brainly.com/question/1827193
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