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What is the least common denominator of 8/9 + 4/7?

What is the least common denominator of 8/9 + 4/7?
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What is the least common denominator of 8/9 + 4/7?

User Leeanna
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Do you mean LCM (Least common multiple)
User Mariano Schmands
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You have to find lcd so, 7x9=63 9x7=63, so the answer is 12/63, after you simplify it is 4/21
User Trez
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