Fractions and Recurring Decimals (Edexcel GCSE Maths): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
Practise the questions
12 questions from this quiz
What determines if a fraction gives a terminating or recurring decimal?
What determines if a fraction gives a terminating or recurring decimal?
Prime factors of denominator (simplest form)
Which prime factors in the denominator give a terminating decimal?
Which prime factors in the denominator give a terminating decimal?
Only 2 and 5
Why do only factors 2 and 5 in the denominator give terminating decimals?
Why do only factors 2 and 5 in the denominator give terminating decimals?
Because in our system
What type of decimal does produce?
What type of decimal does produce?
Recurring (6 has prime factor 3)
Can a recurring decimal pattern consist of multiple digits?
Can a recurring decimal pattern consist of multiple digits?
Yes, e.g.
First step when converting to a fraction?
First step when converting to a fraction?
Let
Converting to a fraction: what do you multiply by?
Converting to a fraction: what do you multiply by?
1000 (three-digit repetition)
Why subtract the original equation when converting recurring decimals?
Why subtract the original equation when converting recurring decimals?
To eliminate the decimal part
Using the quick method, what is as a fraction?
Using the quick method, what is as a fraction?
When does the '9s on bottom' quick method work?
When does the '9s on bottom' quick method work?
Only if recurring starts immediately
To convert to recurring: find equivalent with which denominator?
To convert to recurring: find equivalent with which denominator?
All 9s (e.g. 99)
Which method is more reliable for complex fractions to recurring decimals?
Which method is more reliable for complex fractions to recurring decimals?
Long division