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HESI MathematicsAll four operations

Fraction EssentialsHESI A2 cheat sheet

All four operations

6 key facts 5 practice questions Reviewed Oct 2026
The 1-minute sheetCinnaEntry

Add & Subtract

  • Needs a common denominator
  • Convert, combine numerators, keep the denominator

Multiply

  • Straight across, top × top and bottom × bottom
  • Cross-cancel first to keep numbers small

Divide

  • Keep, change, flip — multiply by the reciprocal

Always

  • Simplify by the GCF and convert improper results to mixed numbers
Key takeaway

All four operations

Before you read

Test yourself first: 5 questions

Question 1 of 5

Write 0.6 as a fraction in simplest form.

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