Question

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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

4 a)

$\frac{ - 5}{12} + \frac{2}{3} \\ \\ = \frac{ - 5}{12} + \frac{8}{ 12 } \\ = \frac{3}{12} \\ = \frac{1}{4}$

b)

$\frac{ - 2}{3} - \frac{ - 9}{15} \\ = \frac{ - 10}{15} - \frac{ - 9}{15} \\ = \frac{ - 1}{15}$

c)

$\frac{15}{ - 10} \times \frac{3}{ - 9} \\ = \frac{1}{ 2}$

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