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STALIN [3.7K]
3 years ago
13

What is the answer for 2 5/7 - 7/8

Mathematics
2 answers:
enot [183]3 years ago
7 0
Change the mixed leading number into an improper fraction...a b/c=(ac+b)/c

19/7-7/8  the least common multiple of the denominators is 56 so:

(19/7)(8/8)-(7/8)(7/7)

(152-49)/56

103/56  now we can change back into a mixed number...

(56+47)/56

1 47/56
NikAS [45]3 years ago
3 0
19/7 - 7/8
19x8/7x8 - 7x7/8x7
152/56 - 49/56
103/56
1 47/56

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Answer:

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DochEvi [55]

Answer:

(-3/2x+1) + (3/x-1)

Step-by-step explanation:

Dont put the answer in parenthesis, I just did that to seprate it so it was easier to read. If you need it to be put in word form for it to be easier for you to understand, its "negative three divided by two x plus one, plus 3 divided by x minus 1"

First, rewrite the expression as 3x+6/2x^2+x-2x-1

Then, factor the expression, 3x+6/x*(2x+1)-(2x+1) (*=multiply)

Then, write a new fraction for each factor in the denominator, then write a new fraction, 3x+6/(2x+1)*(x-1) to (A)/2x+1 + B/x-1)

Then write terms in the numerators, for now we will use A and B.

Now we set the sum of the fractions equal to the original fraction.

3x+6/(2x+1)*(x-1) = A)/2x+1 + B/x-1).

Then reorder and group the terms, giving you 3x+6=(A+2B)x+(-A+B).

Now equate the coefficiants, {6= -A+B, 3= A+2B

Then substitute back, (A, B)=(-3, 3)

Now finally, just rewrite the fraction. (-3/2x+1) + (3/x-1)

Hope this helps! Sorry its kind of long.

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Carbon is found only in living organisms.
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T because carbon is only found in living organisms.
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i need you to increase the number of customers you talk to daily by 20%. I talk to an average of 8 customers per hour during an
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Rate is (8cs/hr)(8hr)=64 customers
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X=2 is the correct answer x=2
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