calculation FractionsRule1: 0 / a -> 0 calculation FractionsRule2: a / 1 -> a expansion FractionsRule3: a / a -> 1 expansion FractionsRule4: (a / b) ^ -1 -> b / a expansion FractionsRule5a: (a / b) ^ (-1 * c) -> (b / a) ^ c expansion FractionsRule5b: (a / b) ^ -c -> (b / a) ^ c expansion FractionsRule6: a ^ -1 -> 1 / a expansion FractionsRule7a: a ^ -b -> 1 / a^b expansion FractionsRule7b: a ^ (-1 * b) -> 1 / a^b calculation FractionsRule8a: (-1 * a) / (-1 * b) -> a / b calculation FractionsRule8b: (-1 * a) / (b * -1) -> a / b calculation FractionsRule8c: (a * -1) / (-1 * b) -> a / b calculation FractionsRule8d: (a * -1) / (b * -1) -> a / b expansion FractionsRule9a: (-1 * a) / b -> -1 * (a / b) expansion FractionsRule9b: (a * -1) / b -> -1 * (a / b) expansion FractionsRule10a: a / (-1 * b) -> -1 * (a / b) expansion FractionsRule10b: a / (b * -1) -> -1 * (a / b) expansion FractionsRule11: a / (b / c) -> (a * c) / b expansion FractionsRule12: (b / c) / a -> b / (c * a) expansion FractionsRule14a: (a / b) * (c / d) -> (a * c) / (b * d) expansion FractionsRule14b: (a / b) * c -> (a * c) / b expansion FractionsRule14c: a * (c / d) -> (a * c) / d reduction FractionsRule15: (a / b) ^ 2 -> (a * a) / (b * b) reduction FractionsRule16: (a / b) ^ c -> (a ^ c) / (b ^ c)