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Evaluate the fraction
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16 Dec 2016, 19:13
16 Dec 2016, 19:13
Expert Reply
00:00
Question Stats:
86% (00:32) correct
13% (00:23) wrong based on 23 sessions
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\(\frac{3}{\frac{6}{7}}\)
A. \(\frac{36}{7}\)
B. \(\frac{2}{7}\)
C. \(2\times\frac{4}{7}\)
D. \(3\)
E. \(3+\frac{1}{2}\)
A. \(\frac{36}{7}\)
B. \(\frac{2}{7}\)
C. \(2\times\frac{4}{7}\)
D. \(3\)
E. \(3+\frac{1}{2}\)
Drill 1
Question: 1
Page: 310
Question: 1
Page: 310
Re: Evaluate the fraction
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16 Dec 2016, 19:17
16 Dec 2016, 19:17
Expert Reply
Explanation
When dividing by a fraction, flip the fraction and multiply:
\(3 \div \frac{6}{7}\)
or \(3 \times \frac{7}{6}\)
or \(\frac{21}{6}\)
or \(3+\frac{1}{2}\)
Alternatively, you may estimate and realize that 3 divided by something slightly smaller than 1 must be slightly larger than 3.
Hence option E is correct.
When dividing by a fraction, flip the fraction and multiply:
\(3 \div \frac{6}{7}\)
or \(3 \times \frac{7}{6}\)
or \(\frac{21}{6}\)
or \(3+\frac{1}{2}\)
Alternatively, you may estimate and realize that 3 divided by something slightly smaller than 1 must be slightly larger than 3.
Hence option E is correct.
Re: Evaluate the fraction
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19 Dec 2016, 17:51
19 Dec 2016, 17:51
3 X 1/2 is 1.5. I think the correct answer should be written as 3+1/2, not 3 X 1/2, as the answer is 7/2, not 3/2.
