Fractions, Decimals, and PercentsBy: David A. Adler Illustrator: Edward Miller Step right up! Come take part in the county fair, where youll see fractions, decimals, and percents everywhere. Gobble up a fraction of pie, boost your batting average in the arcade, and take a percent off the price of a toy. Learning about equivalent parts equals a whole lot of fun in this straightforward introduction to a challenging concept.