Fractions

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Fractions

  1. 1. FRACTIONS USES AND OPERATIONS
  2. 2. USES OF FRACTIONS <ul><li>Fractions are used to represent a part of one unit or several units. </li></ul><ul><li>A fraction is written with two numbers: numerator and denominator </li></ul>
  3. 3. EQUIVALENT FRACTIONS <ul><li>Equivalent fractions are equal amounts. </li></ul><ul><li>To get equivalent fractions multipy or divide both numerator and denominator by the same number </li></ul>
  4. 4. FRACTION OF A QUANTITY <ul><li>Calculate a fraction of a quantity multipling the quantity by the numerator and dividing the result by the denominator </li></ul>
  5. 5. SUM AND DIFFERENCE OF FRACTIONS <ul><li>First, find equivalent fractions with the same denominators (lcm) </li></ul><ul><li>Then, add or subtract the numerators and write the same denominator </li></ul>
  6. 6. PRODUCT AND DIVISION OF FRACTIONS <ul><li>To multiply fractions, just multiply numerators and denominators </li></ul><ul><li>To divide fractions, first, invert the fraction you are dividing by; then multiply both fractions </li></ul>
  7. 7. Find the missing fractions

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