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MakcuM [25]
3 years ago
6

Help please. i am terrible with fractions. 2/3 - (1/4) * (4/9)

Mathematics
2 answers:
s2008m [1.1K]3 years ago
7 0
Ok so first following the order of opperation (P.E.M.D.A.S.)
We have to multiply first so 1/4*4/9 is 4/36
2/3-4/36
We have to get them both to have the same denominator
What times 3 is 36? 12
So multiply 2*12 and 3*12 you get 
24/36-4/36=5/9(simplified)
katrin2010 [14]3 years ago
4 0
2/3 - 1/4 × 4/9
2/3 - 1/9
6/9 - 1/9
5/9
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5 0
3 years ago
Are the two expressions -2 +3x and 3x + (-2) equivalent?
atroni [7]

Yes. Let's look at PEMDAS. Parentheses, Exponents, <em>Multiplication</em>, <em>Addition</em>, Subtraction. As we can see, multiplication comes first. In -2 + 3x, reading it from left to right, we see the addition symbol first, but because we're supposed to do multiplication, we have to do the 3x first. The same goes for 3x + (-2).

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3 0
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