This booklet provides a good introduction to working with and calculating fractions. Fractions are presented visually, and skills in the four basic arithmetic operations are practiced. Proper fractions and decimal fractions are compared. Important calculation rules are explained in precise note boxes. The diverse types of exercises offer the opportunity to apply and practice these rules purposefully. The integration of calculations into real-life contexts illustrates fraction calculations, provides a connection to everyday life, and links logical thinking with mathematics.