Negative & Fractional Indices (GCSE Higher)

Understand what zero, negative and fractional powers mean and evaluate expressions such as 2⁻³, 27^(2/3) and 8^(−2/3) without a calculator. Fractional indices are Higher tier GCSE content; this course builds them up from the index laws with checked worked examples.

Tutwoo is an independent learning provider. This course supports revision for GCSE Mathematics (Higher tier) in England. It is not produced or endorsed by any exam board and is not an accredited qualification.

© 2026 Tutwoo UK Limited. This course was created in-house by Tutwoo and is our original work. It is for your own learning only: please do not copy, share, record or resell it.