Children learn to calculate unit and non-unit fractions of whole numbers to solve sharing and grouping problems where the result is a whole number.
In Year 6, children calculate unit and non-unit fractions of quantities where the answer is a whole number. Building on basic division, they use their knowledge of fractions and multiples to split quantities into equal parts and solve problems involving unequal sharing and grouping.
A common mistake occurs when working with non-unit fractions: children frequently remember to divide by the denominator to find one part, but forget to multiply that answer by the numerator. Another typical error is confusing the two steps entirely by dividing by the top number and multiplying by the bottom.
Tasks using the Find a fraction of a number template present direct arithmetic problems, such as calculating 3/8 of 40 or 2/3 of 18. Children divide the whole number by the denominator to find a unit fraction, then multiply that result by the numerator to reach the final whole-number amount.