Question

3-107. Find common denominators and calculate each of the following sums.

b. +3
What is the least common multiple of 8 and 4? Of 5 and 3?
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d. Explain how finding the least common multiple of two numbers can help
you add fractions.

Answer 1

LCM(8,4)=8.LCM(5,3)=15. LCM can be used to create equivilant fractions, meaning you can add fractions with much more efficiency.

Explanation: