Question

evaluate 7 upon 18 + 5 upon -16 - 2 upon 9​

Answer 1

Step-by-step explanation:

$\frac{7}{18} + \frac{5}{ - 16} - \frac{2}{9} = \frac{7}{18 } - \frac{5}{16} - \frac{2}{9} \\ = \frac{7}{18} - \frac{(45 + 32)}{16 \times 9} = \frac{7}{18} - \frac{77}{144} \\ = 7( \frac{1}{18} - \frac{11}{144} ) \\ = 7( \frac{144 - 198}{18 \times 144} ) \\ \frac{ - 54 \times 7 }{18 \times 144} \\ = - 0.1458$