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Presentation Fractions

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Published in: Mathematics
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Multiplication and division of a fraction

Mohd F / Dubai

8 years of teaching experience

Qualification: BACHELORS OF TECHNOLOGY, B.ED.

Teaches: Physics, Science, Maths, Biology, Chemistry, Mathematics

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  1. goteachmaths.co.uk Fractions — Multiplying & Dividing — Demonstration This resource provides animated demonstrations of the mathematical method. Check animations and delete slides not needed for your class. O goteachmaths
  2. To quickly multiply fractions we multiply the numerators multiply the denominators 1 1 2 3 1 6
  3. To quickly multiply fractions we multiply the numerators multiply the denominators 1 2 3 3 2 9
  4. To quickly multiply fractions we multiply the numerators multiply the denominators 1 2 2 3 4 12 (12) Can we simplify this fraction? 1 6
  5. To quickly multiply fractions we multiply the numerators multiply the denominators 2 1 2 3 15 (15) Can we simplify this fraction?
  6. To quickly multiply fractions we multiply the numerators multiply the denominators 3 2 6 4 20 (20) Can we simplify this fraction? 3 10
  7. To quickly multiply fractions we multiply the numerators multiply the denominators (15) 5 3 15 5 6 30 (30) Can we simplify this fraction? 1 2
  8. Dividing is the same as multiplying by the reciprocal. Change the sign. Flip the divisor. 1 4 KEEP 1 4 CHANGE 1 3 FLIP 3 1 3 4
  9. To quickly divide fractions we keep the first fraction change the operation flip the second fraction 1 5 KEEP 1 5 CHANGE 1 4 FLIP 4 1 4 5
  10. To quickly divide fractions we keep the first fraction change the operation flip the second fraction 1 6 KEEP 1 6 CHANGE 1 5 FLIP 5 1 5 6
  11. To quickly divide fractions we keep the first fraction change the operation flip the second fraction 2 3 KEEP 2 3 CHANGE 1 4 FLIP 4 1 8 3 2 -2- 3
  12. To quickly divide fractions we keep the first fraction change the operation flip the second fraction 3 4 KEEP 3 4 CHANGE 1 5 FLIP 1 4 3 4
  13. To quickly divide fractions we keep the first fraction change the operation flip the second fraction 4 5 KEEP 4 5 CHANGE 3 4 FLIP 4 3 1 15
  14. Multiplying Fractions Dividing Fractions ? ???? CHANGE FLIP 3 4
  15. Multiplying Fractions Dividing Fractions 4 1 2 4 3 3 4 2 3 3 3 4 12 20 6 6 4 10 16 9 ?? ? ???? CHANGE FLIP