Fractions are used to represent some parts of a whole. It consists of two numbers: a numerator that represents some parts of the whole, and a denominator that tells us about the total number of parts present. Fractions are used to measure and represent parts of a whole, and they come to use in many ways in our day to day lives.
Children should learn the basics of fractions to help them build a solid foundation, as fractions are basics of complex mathematical concepts like algebra. There are various rules to be followed while adding, subtracting and multiplying fractions. Though they might seem complex, with practice and understanding children will be able to grasp the concepts easily. Here is a worksheet on subtraction of mixed fractions with similar denominators.