Wales and Northern Ireland uses the A* to G grading system, while Scotland uses grades A, B, C and D in its GCSE-equivalent qualification, the National 5. Initially, this was just for English ...

These are called equivalent fractions. Look at the shaded areas in these rectangles. So \(\frac{3}{5} = \frac{6}{{10}}\). You can produce lots of equivalent fractions by multiplying or dividing ...