This document discusses different methods for multiplying and dividing fractions. It explains how to multiply a fraction by a whole number by writing the whole number as a fraction and lining up the fractions to multiply across. It also shows an example of multiplying 2/5 by 20 to find that 2/5 of 20 baby ducks is 8. The document aims to explain how to multiply fractions, divide fractions by whole numbers and divide fractions by other fractions.