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IgorLugansk [536]
3 years ago
5

-7/8 + 1/4 Show work please

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
8 0

Answer:

-5/8

Step-by-step explanation:

-7/8 + 2/8 = -5/8

lana66690 [7]3 years ago
5 0
-7/8 + 1/4 which is 2/8 so it is -7/8+2/8 we only add the numerator, number on top, so -7+2=5
Answer=

-5/8
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Step-by-step explanation:

The given expression is :

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Taking LHS of the above expression

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Rationalizing both denominator and numerator.

\dfrac{2-\sqrt5}{2+3\sqrt5}\times \dfrac{2-3\sqrt5}{2-3\sqrt5}=\dfrac{4-6\sqrt5-2\sqrt5+15}{2^2-(3\sqrt5)^2}\\\\=\dfrac{19-8\sqrt5}{4-45}\\\\=\dfrac{19-8\sqrt5}{-41}\\\\=\dfrac{\sqrt5 \times 8}{41}+(\dfrac{-19}{41})

Equation (1) becomes,

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Equating both sides,

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