Question

Simplify each of the following and express the result as a rational number in standard form:

\[\frac{- 11}{9} \times \frac{- 81}{- 88}\]

Answer 1

\[\frac{- 11}{9} \times \frac{- 81}{- 88} = \frac{- 11}{9} \times \frac{- 9 \times 9}{- 8 \times 11} = \frac{- 9}{8}\]