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motikmotik
3 years ago
6

Simplify 4/10 - 2/15

Mathematics
2 answers:
olasank [31]3 years ago
8 0
You have to make the denominTors even, in this. Case it is 30. So you mutiply the 4 by 3 because you mutiply true 10 by 3 to get 30. So that fraction is now 12/30. Then mutiply the 2 by 2 because the 15 gets multiplied by 2 to get 30. So your equation is now 12/30 - 4/30. And you solve that to make 8/30. Simplify it to get 4/15. 4/15 is the answer. Hope this helps.
Temka [501]3 years ago
8 0
\frac{4}{10} -  \frac{2}{15} \\ \\  \frac{2}{5} -  \frac{2}{15} \\ \\ LCD = 15 \\ \\  \frac{2 \times 3}{5 \times 3} -  \frac{2}{15} \\ \\  \frac{6 - 2}{15} \\ \\  \frac{4}{15} \\ \\

The answer is: 4/15 or 0.2667.
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Simplify: -|-15|<br><br> please answer correctly i'll give brainliest and 5-star rating.
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-15

Step-by-step explanation:

<u>Definition of absolute value: </u>

<em>Distance from zero on a number line. </em>

<em />

Imagine a number line with 0 in the middle of it. Now mark the number 3 on it. Also mark the <em>opposite </em>of 3, which is -3. What is the <u>distance</u> from zero to those 2 points? it's 3.

This is exactly like saying |3| = 3 and |-3| = 3

Even if the number inside absolute value is negative, it <em><u>simplifies</u></em> to the positive of the same number.

_______________________________

So let's talk about your problem.

-|-15|

> the absolute value simplifies to 15

-|-15| = - 15

So that ends up being your answer.

-15

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