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Sagot :
Answer:
-5/14
Step-by-step explanation:
When adding fractions, you need to have a common denominator, the bottom part of a fraction. Because one denominator is 14 and the other is 7, you must create a new denominator.
To create a new denominator, you can either reduce a fraction or multiply it by something, which is easier.
For this problem, we can convert 2/7's denominator into 14 instead of 7 by multiplying the fraction by 2/2:
2 x 2 = 4
7 2 = 14
2/7 has now converted into 4/14. Now, we can easily add.
-9/14+4/14 This can be rewritten as something more understandable.
4/14-9/14 We are now subtracting.
-5/14 This cannot reduce, so it is our answer.
I hope this helps!! Have an amazing day and let me know if you want more explanation ;)
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