RD Sharma Solutions for Class 7 Chapter 3 “Decimals”- primarily discusses the fundamentals of decimals. Decimals can be considered as fractions whose denominators are 10, 100, 1000 etc. Here students will learn about the definition of decimals and their types, fundamental operations such as addition, subtraction, multiplication and division on them. This chapter clearly mentions different methods to solve these operations on decimals. Decimals are significant in our daily lives, as we purchase or sell something, it is compulsory to know about decimals. It is also an extended part of our number system.