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# Maths watch

1. How can 3x+2/4 + 7x-1/3 be simplified to 37x+2/12?

Is the bottom part because 4x3=12?
2. (Original post by Maths1210)
How can 3x+2/4 + 7x-1/3 be simplified to 37x+2/12?

Is the bottom part because 4x3=12?
The answer simply requires you to add both fractions. Do you know how to do that?
3. (Original post by Maths1210)
How can 3x+2/4 + 7x-1/3 be simplified to 37x+2/12?

Is the bottom part because 4x3=12?
Yes, once you can get a common denominator for both fractions (in this case the lowest common denominator would be 12), you can simply add the numerators.

So (3x+2)/4 + (7x-1)/3 = [3(3x+2)+4(7x-1)]/12
and you just expand and simply the top to achieve the desired result.
4. (Original post by Anonymouspsych)
Yes, once you can get a common denominator for both fractions (in this case the lowest common denominator would be 12), you can simply add the numerators.

So (3x+2)/4 + (7x-1)/3 = [3(3x+2)+4(7x-1)]/12
and you just expand and simply the top to achieve the desired result.
Thank you.

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Updated: February 4, 2018
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