Question

subtract 2 by 9 from 1 by 18​

Answer 1

Answer:

2 by 9=7

1 by 18=17

17-7=10

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Answer 2

$\frac{2}{9} - \frac{1}{18} = \frac{2 \times 2}{9 \times 2} - \frac{1 \times 1} {18 \times 1} = \frac{3}{18}$