Rearranging Formulas with Fractions GCSE Maths
Rearranging formulas involving fractions is a Higher Tier algebra skill that appears regularly in GCSE Maths exams.
Example
Rearrange:
y = x/4 + 3
Subtract 3:
y - 3 = x/4
Multiply by 4:
x = 4(y - 3)
Exam tip: Use inverse operations carefully and keep the equation balanced.
Common mistake: Students sometimes multiply only one side by the denominator.
Video explanation
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