the third decimal place is 7, which is 5 or more, so the second decimal place goes up from 7 to 8
7 ÷ 9 = 0.78 (to 2 decimal places)
Answer: 0.78
For parents
How do you solve P5 fraction to decimal questions?
This page covers the Primary 5 outcome on expressing fractions as decimals, for proper fractions, improper fractions and mixed numbers, with and without rounding.
What your child learns here
This page covers the Primary 5 outcome on expressing fractions as decimals, for proper fractions, improper fractions and mixed numbers, with and without rounding.
If the denominator divides 10, 100 or 1000 exactly, write an equivalent fraction with that denominator and read off the decimal.
Otherwise divide the numerator by the denominator by long division.
For a mixed number, keep the whole number and convert only the fraction part.
When a number of decimal places is asked, work to one more place, then round.
If no rounding is asked, keep dividing until there is no remainder.
Does the answer make sense?
A proper fraction must become a decimal less than 1, an improper fraction one greater than 1, and for a mixed number your child keeps the whole number in front of the decimal point. So 17/6 must come out between 2 and 3, and 3/40 well under one tenth.
How to practise these questions
Basic questions train rewriting fractions over 10 or 100, using long division when that is not possible, and rounding to 1 or 2 decimal places. The Challenge questions round where the deciding digit is exactly 5, keep the whole number apart from a recurring fraction part, or set the division inside a story. If the rounding or the long division slips, watch the solution film for that question and try it again later from Revision. Its multiple-choice Basic questions give a division and ask which of four forms, decimals among them, is NOT equal to it, with each option checked in the written working instead of a film.
Questions parents ask
Is changing fractions to decimals in Primary 5? Yes. Expressing fractions as decimals is an outcome under Fraction and Division in the Primary 5 syllabus.
When should my child use long division? When the denominator cannot be made into 10, 100 or 1000, such as 3 or 7, divide the numerator by the denominator. Fractions such as fifths, quarters and eighths can be rewritten instead.
How do I round to 2 decimal places? Work out three decimal places, then look at the third digit. If it is 5 or more, round the second digit up; otherwise leave it as it is.
