How can knowing the gcf and lcm help you when you add subtract and multiply fractions?

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asked Jan 6, 2016 112k views

2 Answers

Corey D · Answer 1 · 2016-01-09T17:00:26+0000

Best Answer : Knowing the greatest common multiple and the least common multiple helps because you will know more about what is the answer to a problem like :
78-9 = ?
Is that a multiple for number 5?

SebastianG · Answer 2 · 2016-01-12T16:02:46+0000

Knowing the gcm and the lcm helps you when you add, subract, and multiply fractions because you will know more about what the answer is to a problem.

How can knowing the gcf and lcm help you when you add subtract and multiply fractions?

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