Fractions
Division of fractions
- Dividing by a fraction is the same as multiplying by its reciprocal (fraction turned upside down).
- If dividing with mixed numbers, remember to convert to improper fractions first.
For example:
\begin{eqnarray*}
\frac{3}{4} \div \frac{2}{3}&=& \frac{3}{4} \times \frac{3}{2}\\ &=& \frac{3\times3}{4\times2}\\ &=& \frac{9}{8}\\ &=& \displaystyle 1 \frac{1}{8}
\end{eqnarray*}
To do
- Dividing whole numbers by fractions activity (Khan Academy)
More info
- Fractions video (Study Support, USQ Library)
- Understanding division by fractions video (Khan Academy)
- Fractions: multiplying and dividing information sheet (mathcentre)
- Dividing Mixed Numbers video (Khan Academy)