Chapter 1: Number System explores the foundational concepts of Fractions and Decimals. Students will learn about the different Types of Fractions, methods for Comparison of Fractions, and identifying Fractions between two given fractions. The chapter delves into Fundamental Operations on Fractions and their Properties. Additionally, it covers Decimals, Operations on Decimals, Pure Recurring Decimals, Mixed Recurring Decimals, and the process of Converting Decimals into Fractions, providing a comprehensive understanding of these key mathematical elements.