How should you group the following expression to make it easiest to add? 18 − 9 4/9 + 7/9 − 8 (1 point)
A. (18 - 8 - 9)
B. (18 - 8) + (-9 4/9 + 7/9)
C. (8 - 18) + (4/9 + 7/9)
D. (18 - 9 - 8) + (-4/9 + 7/9)
I NEED HELP PLEASE
CONNECTIONS 100% MATH ANSWERS
1. 21
2. (18 - 9 - 8) + (-4/9 + 7/9)
3. Add a zero
4. -23.1
5. -220.857
Its a 100% I just finished and got a 100. Your welcome :)
Add a zero.
The expression 18 - 9 4/9 + 7/9 - 8 can be simplified by first adding the whole numbers, then adding the fractions separately.
To group the expression in a way that makes it easiest to add, we can use option D.
This grouping allows us to simplify the whole numbers first (18 - 9 - 8) and then simplify the fractions separately (-4/9 + 7/9).
So, the correct answer is D.