Question

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Answer 1

Step-by-step explanation:

$\frac{ - 9}{15} + \frac{ - 2}{45} \\ \frac{ - 27 - 2}{45} = \frac{ - 29}{45} \\ \\ \frac{8}{9} - \frac{4}{12} = \frac{32 - 12}{36} = \frac{24}{36} = \frac{2}{3} \\ \\ \frac{5}{24} \div \frac{30}{12} = \frac{5}{24} \times \frac{12}{30} = \frac{1}{12}$

$\frac{15}{14} \times \frac{ - 7}{30} = \frac{ - 1}{12}$