Children with ADHD (attention deficit hyperactivity disorder) can be hyperactive which can make it difficult to get to sleep. Bedtime can also be chaotic and stressful for parents.
Rational Numbers 5/1, 1/2, 1.75, -97/3 ... A rational number is any number that can be written as a ratio of two integers (hence the name!). In other words, a number is rational if we can write it as a fraction where the numerator and denominator are both integers.
Report Abuse. Proof: For any two rational numbers, a and b, there exists a number c that is their average and is also rational and lies between the two values. The sum, difference, product and quotient of any two rational numbers are rational by definition. The sum of the two is therefore rational. Dividing the sum by 2, another rational number, therefore gives a rational result.