In short: A proper fraction is less than 1, an improper fraction is 1 or more, and a mixed number has a whole part and a fraction part, like . Equivalent fractions are equal fractions, made by multiplying or dividing the top and bottom by the same number.
Before you start
- A fraction has a numerator (top: how many parts you have) and a denominator (bottom: how many equal parts make a whole).
- Times tables and division with remainders, like remainder 1.
- Factors of a number divide it exactly. Factors of 12: 1, 2, 3, 4, 6, 12.
Three types of fraction
| Type | What it means | Examples |
|---|---|---|
| Proper fraction | top is smaller than bottom, so less than 1 | , , |
| Improper fraction | top is bigger than (or equal to) bottom, so 1 or more | , , |
| Mixed number | a whole number and a proper fraction | , , |
Improper fraction to mixed number
Mixed number to improper fraction
Equivalent fractions
Equivalent fractions look different but have the same value.
Lowest terms
A fraction is in lowest terms (or simplest form) when no number except 1 divides both the top and bottom.
To simplify, divide top and bottom by their highest common factor (HCF), the biggest number that divides both.
- Proper: top smaller
- Improper: top bigger
- Mixed: whole + fraction
- Divide top by bottom
- Remainder over bottom
- Whole x bottom + top
- Same to top and bottom
- Divide by the HCF
Quick summary
- Proper fractions are less than 1. Improper fractions are 1 or more. Mixed numbers have a whole part and a fraction part.
- Improper to mixed: divide top by bottom, and the remainder goes over the bottom.
- Mixed to improper: whole times bottom, plus top, over the bottom.
- Equivalent fractions: multiply or divide top and bottom by the same number.
- Lowest terms: divide top and bottom by their highest common factor.
Quiz
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Try 3 questions now
Which is an improper fraction?
- A
- B
- C
- D
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B:
The top (13) is bigger than the bottom (10).
- A
- B
- C
- D
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A:
remainder 1.
- A
- B
- C
- D
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C:
, so .