(7/8) (-2/7) (-4/9) note that we can switch numerators/denominators when we multiply fractions......this sometimes makes things easier........write this as:
(7/7) (-4/8)(-2/9) =
(1) (-1/2)(-2/9) =
(1) (-1/9)(-2/2) =
(1) (-1/9)(-1) =
(1) (-1) (-1/9) =
1/9
