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Question

Add. Write each sum in the lowest terms.

15+12


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Solution

While adding fraction having, unlike denominators. The least common multiple of the denominators is always the least common denominator.

Also, we can use the product of the denominators to get a common denominator keeping in mind that the denominators are prime.

We have 15+12

The least common multiple of the denominators (5,2)=10

15+12=210+510(changing15&12inequivalentfractionhavingdenominatoras10)=710

Therefore the required sum in the lowest term is 710.


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