Question

b) – 7 /18 – (- 4/9 )​

Answer 1

Answer

1/18 is the answer to this question.

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Answer 2

Answer:

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Step-by-step explanation:

$\frac{ - 7}{18} - ( \frac{ - 4}{9} ) \\ \\ \frac{ - 7}{18} + \frac{ 4}{9} \\ \\taking \: \: lcm \\ \\ \frac{ - 7}{18} + \frac{ 4 \times 2}{9 \times 2} \\ \\ \frac{ - 7}{18} + \frac{ 8}{18} \\ \\ \frac{ - 7 + 8}{18} \\ \\ \frac{1}{18}$