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Umnica [9.8K]
3 years ago
12

Why do we need a common denominator

Mathematics
2 answers:
Zanzabum3 years ago
8 0
If u do not have a comon den. that it will be confusing and u will not come up with the right answer 
KengaRu [80]3 years ago
4 0
Finding a common denominator<span> makes it possible to add two fractions because it allows us to </span>write each<span> fraction as a multiple of a </span>common<span> (usually smaller) fraction. Subtracting fractions works the same way; find a </span>common denominator<span> so that the fractions involved are in the same terms.
<span>
</span>[ Source: </span><span>www.mathmistakes.info/facts/AlgebraFacts/learn/fr/add.html ]</span>

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