Question

13. Subtract 7/18 from the sum of (-5)/16 and 4/9
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Answer 1

Add

$\frac{ - 5}{16} + \frac{4}{9} \\ = \frac{ - 144 + 64}{144} \\ = \frac{ - 80}{144}$

subtract

$\frac{ - 80}{144} - \frac{7}{18} \\ = \frac{ - 80 - 56}{144} \\ = \frac{-136}{144} \\ = \frac{-17}{18}$