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What is −6 7/12 − 4 1/3?(1 point)

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15 answers

To subtract mixed numbers, you need to find a common denominator.

The common denominator for 12 and 3 is 12.

So, −6 7/12 can be written as −6 7/12 = -6 * 12/12 + 7/12 = -72/12 + 7/12 = -65/12.

And, 4 1/3 can be written as 4 1/3 = 4 * 3/3 + 1/3 = 12/3 + 1/3 = 13/3.

Now, subtracting -65/12 - 13/3:

To subtract fractions, you need to have the same denominator. So, we need to get a common denominator of 12.

To convert 13/3 to have a denominator of 12, you multiply both the numerator and the denominator by 4.
13/3 * 4/4 = 52/12.

Now, subtracting -65/12 - 52/12:
(-65 - 52)/12 = -117/12.

Therefore, −6 7/12 − 4 1/3 = -117/12.
What is 907.907−709.709?
To subtract decimal numbers, line up the decimal points and subtract digit by digit.

907.907
-709.709
---------
198.198

Therefore, 907.907 - 709.709 = 198.198.
What is 90.897−81.725?
To subtract decimal numbers, line up the decimal points and subtract digit by digit.

90.897
- 81.725
---------
9.172

Therefore, 90.897 - 81.725 = 9.172.
What is 12815 − 7 + 715 + 15? Simplify your answer.(1 point)
Responses

21
21

411515
41 Start Fraction 15 over 15 End Fraction

201515
20 Start Fraction 15 over 15 End Fraction

35
35
12815 − 7 + 715 + 15 can be simplified as:

12815 − 7 + 715 + 15 = 12808 + 715 + 15 = 13523 + 15 = 13538.

Therefore, the simplified answer is 13538.
How should you group the following expression to make it easiest to add? 18 − 9 4/9 + 79 − 8(1 point)
Responses

(18 − 8) + (−9 4/9 + 7/9)
Left Parenthesis 18 minus 8 Right Parenthesis plus Left Parenthesis negative 9 Start Fraction 4 over 9 End Fraction plus Start Fraction 7 over 9 End Fraction Right Parenthesis

(8 − 18) + (4/9 + 7/9)
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 − 9 − 8) + (−4/9 + 7/9)
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

(18 − 8 − 9)
Left Parenthesis 18 minus 8 minus 9 Right Parenthesis
To make it easiest to add the expression, you should group it as:

(18 - 9 - 8) + (-9 4/9 + 79)

This grouping allows you to simplify the addition of the terms separately.
What should you do if a place value is missing a number?(1 point)
Responses

Remove the last digit(s) in the number that has the additional place values.
Remove the last digit(s) in the number that has the additional place values.

Add a zero.
Add a zero.

Subtract without it.
Subtract without it.

Nothing.
Nothing.
If a place value is missing a number, you should add a zero in that place value.
What is −18.1−5?(1 point)
Responses

−23.1
negative 23.1

23.1
23.1

−13.1
negative 13.1

13.1
−18.1 - 5 = -23.1

Therefore, the answer is -23.1.
What is −189.987−30.87?(1 point)
Responses

159.117
159.117

−220.857
negative 220.87

220.857
220.857

−159.117
negative 159.117
−189.987 − 30.87 = -220.857

Therefore, the answer is -220.857.