How would you group the following expression to make it easier to add?
18−949+79−8
(1 point)
Responses
(18 − 8)−(949+79)
(18 − 8)−(949+79)
(18 − 9 − 8)+(−49+79)
(18 − 9 − 8)+(−49+79)
(8 − 18)+(49+79)
(8 − 18)+(49+79)
(18 − 8 − 9)
+(49+79)
(18 − 8 − 9)+(49+79)
18 − 9 4/9 +7/9 − 8
(1 point)
Responses
(18 − 8)−(9 4/9+7/9)
(18 − 9 − 8)+(−4/9+7/9)
(8 − 18)+(4/9+7/9)
(18 − 8 − 9)
+(4/9+7/9)
can you explain
Certainly! To group the expression to make it easier to add, we can first simplify the mixed fractions.
18 - 9 4/9 + 7/9 - 8
First, subtract the whole number from the whole number part of the mixed fraction:
18 - 9 = 9
Next, subtract the fractions:
4/9 + 7/9 = (4 + 7)/9 = 11/9
Now our expression becomes:
9 + 11/9 - 8
To add these terms, we can rewrite the mixed number as an improper fraction:
9 = 9/1
So the expression becomes:
9/1 + 11/9 - 8
Now we need to find a common denominator for the fractions. In this case, the smallest common denominator is 9.
So we can rewrite the expression with a common denominator:
(9/1)*9/9 + 11/9 - (8*9/9)
Which simplifies to:
81/9 + 11/9 - 72/9
Now we can combine the numerators, keeping the denominator the same:
(81 + 11 - 72)/9 = 20/9
So, grouping the given expression in this way makes it easier to add, resulting in the simplified expression 20/9.
it's not asking to simplify its asking how would you group the following expression to make it easier to add?
To group the expression to make it easier to add, we can use parentheses to clearly define the operations that need to be performed together.
The given expression is:
18 - 9 4/9 + 7/9 - 8
To group it for easier addition, we can use parentheses to indicate the order of operations:
(18 - 9) + (4/9 + 7/9) - 8
This way, the subtraction operation (18 - 9) is grouped together and can be performed as a single step. Similarly, the addition of the fractions (4/9 + 7/9) is grouped together and can be performed as another step. The subtraction operation (-8) is left as a separate group.
This grouping allows us to clearly see which operations need to be performed together, making it easier to add the expressions and follow the correct order of operations.
The only answers are
(18 − 8)−(9 4/9+7/9)
(18 − 9 − 8)+(−4/9+7/9)
(8 − 18)+(4/9+7/9)
(18 − 8 − 9)
Apologies for the confusion.
To group the given expression in a way that makes it easier to add, we can use parentheses to indicate the operations that need to be performed first.
The given expression is:
18 - 9 4/9 + 7/9 - 8
One possible grouping is:
(18 - 8) - (9 4/9 + 7/9)
This grouping allows us to first subtract 8 from 18, then perform the addition of the mixed number (9 4/9) and the fraction (7/9), and finally subtract the result from the previous subtraction.
So, one way to group it to make it easier to add is:
(18 - 8) - (9 4/9 + 7/9)
How should you group the following expression to make it easiest to add? 18 − 949 + 79 − 8(1 point)
Responses
(18 − 9 − 8) + (−49 + 79)
Left Parenthesis 18 minus 9 minus 8 Right Parenthesis plus Left Parenthesis negative Start Fraction 4 over 9 End Fraction plus Start Fraction 7 over 9 Right Parenthesis
(8 − 18) + (49 + 79)
Left Parenthesis 8 minus 18 Right Parenthesis plus Left Parenthesis Start Fraction 4 over 9 End Fraction plus Start Fraction 7 over 9 End Fraction Right Parenthesis
(18 − 8 − 9)
Left Parenthesis 18 minus 8 minus 9 Right Parenthesis
(18 − 8) + (−949 + 79)