What is 1/2 + 2/3? Im stupid so I don't know what this is. idk I'm dumb

Mathematics

2 answers:

nadezda [96]4 years ago

6 0

Answer:

1/2 + 2/3 = 1 1/6

Step-by-step explanation:+

1/2 + 2/3 = ?

Find the common denominator.

3/6 + 4/6 = 7/6

Turn your improper fraction into a mixed number.

1 1/6

Dmitry [639]4 years ago

3 0

Answer:

=7/6 pls mark me as brainlist

Step-by-step explanation:

1/2+2/3

=find lcm = 6

=1x3/2x3 +2x2/3x2

3/6+4/6

=7/6

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2 years ago

Simplify the expression. (−3)^−4

vova2212 [387]

Answer:

1/81

Step-by-step explanation:

In the problem, we are given the expression $\displaystyle \large{(-3)^{-4}}$ . To simplify this expression, we have to use laws of exponents since we cannot directly evaluate negative exponent by default. The law of exponent specifically for this expression is:

$\displaystyle \large{a^{-n}=\dfrac{1}{a^n}}$

Apply the formula to our given expression in.

$\displaystyle \large{(-3)^{-4}=\dfrac{1}{(-3)^4}}$

Evaluate the expression.

$\displaystyle \large{(-3)^{-4}=\dfrac{1}{(-3)(-3)(-3)(-3)}}\\\\\displaystyle \large{(-3)^{-4}=\dfrac{1}{81}}$

Always keep in mind that for $\displaystyle \large{a^{2n}}$ when $\displaystyle \large{a \in \mathbb{R}}$ and $\displaystyle \large{n \in \mathbb{I} - \{0\}}$ the expression will always remain positive.