Friction reducers, fracturing fluid compositions and methods for treating subterranean formations, wherein friction reducer is a reacted, grafted or blend of galactomannan gum and polyacrylamide having a molecular weight between from about 300,000 to about 30,000,000 and wherein the amount of polyacrylamide in the friction reducer is from about 15 to about 50 weight percent based on the total weight of the polyacrylamide and galactomannan gum.