Question: The arrangement of rational numbers $ \frac{-7}{10}, $ $ \frac{5}{-8}, $ $ \frac{2}{-3} $ in ascending order is
Options:
A) $ \frac{2}{-3}<\frac{5}{-8}<\frac{-7}{10} $
B) $ \frac{5}{-8}<\frac{-7}{10}<\frac{-2}{3} $
C) $ \frac{-,7}{10}<\frac{5}{-8}<\frac{2}{-3} $
D) $ \frac{-7}{10}<\frac{2}{-3}<\frac{5}{-8} $
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Answer:
Correct Answer: D
Solution:
- LCM of 10, 8, 3 = 240
$ \frac{-7}{10}=\frac{168}{240} $
$ \Rightarrow $ $ \frac{-5}{8}=\frac{-150}{240} $
$ \frac{-2}{3}=\frac{-160}{240} $
Since, $ \frac{-168}{240}<\frac{-160}{240}<\frac{-150}{240} $
$ \therefore $ $ \frac{-7}{10}<\frac{-2}{3}<\frac{-5}{8} $