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Lelu [443]
2 years ago
10

Subtract the fraction and simplify the answer 13/15 - 1/5

Mathematics
1 answer:
Mrac [35]2 years ago
8 0
First, make sure that there is a common denominator, or in other words, the denominators, are the same. 

You have the numbers 15 and 5 and the lowest common multiple between the two is 15, and in order to make sure the denominators are both the same, you multiply 5 by 3. 

Now, whatever you do to the bottom, you make sure you do to the top. In other words, multiply the numerator by 3 as well, and the second fraction is now 3/15. You can now subtract 3 from 13 and the answer is 10/15. You can reduce that to 2/3 by factoring out a 5.

13/15 - 1/5 --> 13/15 - 3/15 = 10/15 --> 2/3
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