Mental math course

Common Fractions

Topics

  1. The Concept of a FractionFree
  2. Proper and Improper FractionsPro
  3. Comparing FractionsFree
  4. Reducing FractionsPro
  5. Bringing Fractions to a Common DenominatorPro
  6. Adding FractionsPro
  7. Subtracting FractionsPro
  8. Adding and Subtracting FractionsPro
  9. Multiplying Fractions. Finding a Fraction of a NumberPro
  10. Dividing Fractions. Finding a Number from Its FractionPro
  11. Multiplication and DivisionPro
  12. All Four Operations with FractionsPro

The starter topics are free. The full course is part of MathMe Pro.

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The Concept of a Fraction

  1. The fraction a/b means a parts of size 1/b: the numerator counts the parts, the denominator names their size.
  2. What does the bottom number of a fraction tell you? Denominator = into how many equal parts. Numerator = how many were taken.
  3. What part of a metre is 50 cm? 50 cm out of 100 cm = 50/100 = 1/2 of a metre.

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