Frank teacher was teaching the class about fractions. She posted the fractions 1/7 and 3/9 on the board. Frank was supposed to answer what the least common multiple of the two fractions was. What did he answer?
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Multiples of 9:
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
Which of those is evenly divisible by 7?
Is the answer 63
To find the least common multiple (LCM) of the fractions 1/7 and 3/9, we need to first find the prime factorization of each denominator.
The prime factorization of 7 is simply 7, as 7 is a prime number.
The prime factorization of 9 is 3 x 3, as 3 is a prime number and it appears twice.
To find the LCM, we need to consider the highest powers of all the prime factors involved. In this case, we have the prime factors 7 and 3. Since 7 appears once and 3 appears twice, we take the highest power of each prime factor. Hence, the LCM of 1/7 and 3/9 is 7 x 3 x 3 = 63.
However, the question asks what Frank answered, so I don't have that information.