To find a COMMON DENOMINATOR of two fractions we have to find: A) the greatest common factor of the denominators B) the least common multiple of the denominators C) the product of the numerators
B) the least common multiple of the denominators
5/12 + 1/4 = 8/12. Is the answer in simplest form? Explain.
No, because 8 and 12 can be divided by 4.
What is the least common multiple of 4 and 6?
12
What is the least common multiple of 5 and 15?
15
1/2 + 2/5
9/10
Solve: 4/9 - 1/3 =
1/9
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