Question

(2/3)_2 × (3/4)_3 ×(_7/8)

Answer 1

$\frac{2}{3} - 2 \times \frac{3}{4} - 3 \times ( \frac{ - 7}{8} ) \\ = \frac{2 - 6}{3} \times \frac{3 - 12}{4} \times ( \frac{ - 7}{8} ) \\ = \frac{ - 4}{3} \times \frac{ - 9}{4} \times \frac{ - 7}{8} \\ = \frac{ - 252}{96} \\ = \frac{ - 126}{38 } \\ = \frac{ - 63}{19} ans...$

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