Asian shares were mixed in quiet trading Wednesday ahead of a U.S. Federal Reserve meeting that may give clues on what lies ahead with its massive support for markets. Japan's Nikkei 225 slipped 0.5% in afternoon trading to 29,291.86. South Korea's Kospi rose 0.7% to 3,280.45. Australia's S&P/ASX 200 gained nearly 0.1% to 7,386.20. Hong Kong's Hang Seng lost 0.4% to 28,522.99, while the Shanghai Composite fell 0.9% to 3,524.76, the Associated Press reported. In energy trading, benchmark U.S. crude gained 43 cents to $72.55 a barrel in electronic trading on the New York Mercantile Exchange. It gained $1.24 on Tuesday to $72.12 per barrel. Brent crude, the international standard, added 48 cents to $74.47 a barrel. In currency trading, the U.S. dollar rose to 110.08 Japanese yen from 110.07 yen. The euro cost $1.2124, down from $1.2127.