関連ワード:  2 1 2 as a percent    express 2 1 2 as a percentage    2 1 2 as a decimal and percent    2 1 2 percent in decimal form    2 1 2 percent of 25    2 1 2 percentage into fraction    2 1 2 percent of 13.7    2 1 2 percent of 200    2 1 2 percent of 400    2 1 2 percent of 100