Question

1.Simplify:
a)9/10+(-3/5)+(-7/15)​

Answer 1

$\frac{9}{10} + (\frac{ - 3}{5} ) + (\frac{ - 7}{15} ) \\ \\ \frac{9}{10} - \frac{3}{5} - \frac{7}{15} \\ \\ \frac{27 - 18 - 14}{30} \\ \\ \frac{ - 5}{30} \\ \\ \frac{ - 1}{6}$

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Answer 2

Answer:

9/10-3/5-7/15

27-18-14/30=-1/6