Elementary Algebra

In order to simplify, we cancel out the greatest common factor: a) $= (9)(11)/(9)(13) = 11/13$ b) $= (7(25)/9(25)) = 7/9$ c) $= -37(3)/(41)(3) = -37/41$ d) $= -13(18)/(15)(18) = -13/15$ e) $= 6(45)/(11)(45) = 6/11$ f) $= 27(12) / 27(17) = 12/17$ g)$= 7(13)/11(13) = 7/11$ h) $= 11(17)/13(17) = 11/13$