Rational numbers are used every where in your daily life. How much pocket money you get. That is a rational number. If you spend some amount out of it, it is subtraction of rational number.
If you are an athlete, the running race involves rational numbers. Distance to be run, time taken to run the distance, number ofparticipants in a race, coming first or second or third, number of heart beats you take every minute etc., are all rational numbers. Today Gr8 students explore their knowledge in terms of rational number concepts.